Adjustable welder ground wire structure

Abstract

The utility model discloses a kind of adjustable welding machine ground wire structures, including mutually connected first connecting part and second connecting part, the contact area of flat iron can be formed between the first connecting part and the second connecting part, spring is provided between the first connecting part and the second connecting part, the spring is connected to fixed part, the fixed part is connected to the first connecting part, contact part is connected on the spring, fixed part is connected on the contact part, the fixed part can extrude the contact part to the second connecting part, make the contact part contact with the flat iron, the ground wire is connected on the first connecting part or the second connecting part.

Description

Technical Field

[0001] This utility model belongs to the field of ship welding technology, and specifically relates to an adjustable welding machine grounding wire structure. Background Technology

[0002] Currently, in shipbuilding and repair, the grounding wires for welding machines in the shipyard mostly use short copper core wires directly connected to flat iron before being extended to the ship sections for welding. To reduce redundant grounding work and facilitate unified maintenance, multiple welding machines share the same flat iron grounding wire (usually a PE wire, i.e., protective grounding wire). When the flat iron serves as a common PE wire, it can connect the metal casings of multiple welding machines simultaneously to prevent electric shock risks caused by live casings in case of leakage. To ensure that the grounding resistance meets standards, the flat iron, as a PE wire, needs to have a large cross-sectional area (usually calculated based on the rated current of the largest welding machine). However, directly connecting the short copper core wire to a flat iron with a large cross-sectional area can easily lead to loose connections and poor grounding, making it difficult to guarantee sufficient conductivity, causing welding quality problems, and increasing the risk of overheating and sparks, posing safety hazards. Special rectification must be arranged after each welding inspection. After construction, removing the grounding wire leaves traces that require grinding, re-welding, and can also damage the integrity of the paint. Utility Model Content

[0003] The purpose of this utility model is to provide an adjustable welding machine grounding wire structure, thereby overcoming the defects pointed out in the background art. The specific technical solution is as follows:

[0004] An adjustable welding machine grounding wire structure includes a first connecting part and a second connecting part that are interconnected. A contact area of ​​flat iron can be formed between the first connecting part and the second connecting part. A spring is provided between the first connecting part and the second connecting part. The spring is connected to a fixing part. The fixing part is connected to the first connecting part. A contact part is connected to the spring. A fixing member is connected to the contact part. The fixing member can press the contact part against the second connecting part, so that the contact part contacts the flat iron. A grounding wire is connected to either the first connecting part or the second connecting part.

[0005] Preferably, the ends of the first connecting part and the second connecting part are connected by a protrusion. The protrusion is provided with a threaded hole that passes through the protrusion. A screw is connected in the threaded hole. The two ends of the screw are tightened onto the surface of the protrusion by nuts. A copper core of a grounding wire is connected to the screw.

[0006] Preferably, the fixing part is provided with a threaded hole that passes through the fixing part.

[0007] Preferably, the fixing member is a long rod stud, and the long rod stud is connected to an adjustment handle. The long rod stud can be screwed into the threaded hole and then connected to the contact part.

[0008] Preferably, the contact portion is provided with a threaded connection hole, and the long stud can be screwed into the threaded connection hole.

[0009] Preferably, the fixing part is connected to the end face of the first connecting part, and the fixing part completely covers the end face of the first connecting part.

[0010] Preferably, the fixing part is provided with a mounting hole, and the spring is connected in the mounting hole.

[0011] Preferably, the contact portion includes a joining portion, a connecting portion, and a fitting portion, wherein the joining portion is connected to the spring, and the joining portion and the connecting portion are provided with the threaded connection hole.

[0012] This utility model provides an adjustable welding machine grounding wire structure. The grounding wire structure is connected to a flat iron. During connection, the flat iron is positioned between the first connecting part and the second connecting part. Then, a fixing member on the first connecting part presses the contact part on the spring towards the second connecting part, causing the contact part to press firmly against the flat iron. The flat iron is pressed against the second connecting part, and electrical conductivity is established between the first connecting part, the fixing member, the contact part, the flat iron, and the second connecting part. The grounding wire connected to either the first or second connecting part can be connected to the metal casing of the welding machine. After welding is completed, to remove the grounding wire structure from the flat iron, the fixing member can be twisted to loosen the contact part from the flat iron, and then the grounding wire structure can be removed from the flat iron. This eliminates the need for directly connecting the grounding wire to the flat iron, solving the problem of loose connection between the grounding wire and the flat iron. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0014] Figure 1 This is a front view of the adjustable welding machine grounding wire structure provided in Embodiment 1 of this utility model;

[0015] Figure 2 This is a side view of the adjustable welding machine grounding wire structure provided in Embodiment 1 of this utility model;

[0016] Figure 3 This is a top view of the adjustable welding machine grounding wire structure provided in Embodiment 1 of this utility model;

[0017] Figure 4 This is a connection diagram of the adjustable welding machine grounding wire structure provided in Embodiment 1 of this utility model;

[0018] Figure 5 This is a front view of the adjustable welding machine grounding wire structure provided in Embodiment 2 of this utility model;

[0019] Figure 6 This is a side view of the adjustable welding machine grounding wire structure provided in Embodiment 2 of this utility model;

[0020] Figure 7 This is a top view of the adjustable welding machine grounding wire structure provided in Embodiment 2 of this utility model; Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicating the orientation or positional relationship are 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 are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0024] 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 a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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. The embodiments of this utility model will now be described based on its overall structure.

[0025] Example 1

[0026] See Figure 1 Example 1 provides an adjustable welding machine grounding wire structure, which includes a first connecting part 1 and a second connecting part 2 connected to each other. A contact area 4 of a flat iron 10 can be formed between the first connecting part 1 and the second connecting part 2. A spring 5 is provided between the first connecting part 1 and the second connecting part 2. The spring 5 is connected to a fixing part 6. The fixing part 6 is connected to the first connecting part 1. A contact part 7 is connected to the spring 5. A fixing member 8 is connected to the contact part 7. The fixing member 8 can press the contact part 7 against the second connecting part 2, so that the contact part 7 contacts the flat iron 10. A grounding wire 9 is connected to the first connecting part 1 or the second connecting part 2.

[0027] The fixing part 6 is provided with a threaded hole 60 that penetrates the fixing part 6. The fixing member 8 is a long rod stud, and an adjusting handle 81 is connected to the long rod stud. The long rod stud can be screwed into the threaded hole 60 and then connected to the contact part 7.

[0028] The contact portion 7 is provided with a threaded connection hole 70, and the long rod stud can be screwed into the threaded connection hole 70.

[0029] See Figure 2 The contact portion 7 includes a joining portion 71, a connecting portion 72, and a fitting portion 73. The joining portion 71 is connected to the spring 5, and the threaded connection hole 70 is provided on the joining portion 71 and the connecting portion 72.

[0030] See Figure 1 and Figure 2 The fixing part 6 is provided with a mounting hole 61, and the spring 5 is connected in the mounting hole 61. In this embodiment 1, there are two springs 5, which are symmetrically arranged on the joint part 71 of the contact part 7.

[0031] See Figure 1 and Figure 3The ends of the first connecting part 1 and the second connecting part 2 are connected by a protrusion 3. A threaded hole is provided on the protrusion 3, and a screw 11 is connected in the threaded hole. The two ends of the screw 11 are tightened on the surface of the protrusion 3 by nuts 12. A copper core 91 of a grounding wire 9 is connected to the screw 11.

[0032] Among them, see Figure 1 and Figure 2 The fixing part 6 is connected to the end face of the first connecting part 1, and the fixing part 6 completely covers the end face of the first connecting part 1.

[0033] See Figure 1 , Figure 2 and Figure 4 In the grounding wire structure of Embodiment 1, the copper core 91 of the grounding wire 9 is fixed to the protrusion 3 of the first connecting part 1 and the second connecting part 2 by screws 11 and nuts 12. When not connected to the flat iron 10, the contact part 7 can be fixed to the first connecting part 1 by spring 8, and the long rod stud is directly connected to the threaded hole 60 on the first connecting part 1. The various parts of this wiring structure do not need to be disassembled.

[0034] See Figure 2 and Figure 4 When it is necessary to connect to the flat iron 10, the long stud is twisted, and the long stud gradually moves down and is screwed into the threaded connection hole 70 of the contact part 7. When the bottom threaded end of the long stud is fully screwed into the threaded connection hole 70, the long stud and the contact part 7 are stably fixedly connected. Then, the long stud is twisted further. Since the upper end of the long stud is screwed into the threaded hole 60 at the upper end of the first connecting part 1, the continuous twisting of the long stud can make it move down, so that the contact part 7 is pressed tightly against the flat iron 10. And because of the threaded hole 60 at the upper end, the long stud can be stably fixed on the first connecting part 1, while the flat iron 10 is pressed tightly against the second connecting part, thus achieving a stable connection between the second connecting part and the flat iron. Since the second connecting part is connected to the grounding wire 9, the welding machine can be grounded for protection.

[0035] When it is necessary to remove the grounding wire structure from the flat iron 10, the long rod stud can be twisted in the opposite direction to loosen the grounding wire structure from the flat iron 10. In the prior art, since the short copper core wire of the grounding wire 9 is directly connected to the flat iron, pliers are needed to remove the copper core wire from the flat iron during disassembly.

[0036] Example 2

[0037] Example 2 provides an adjustable welding machine grounding wire structure. The difference between Example 2 and Example 1 is that the spring 8 and the contact part 7 are omitted.

[0038] See Figures 5-7Since the spring 8 is eliminated, the fixing part 6 can be configured not to completely cover the end face of the first connecting part 1. Under the action of the long rod stud, the flat iron 10 is pressed tightly onto the second connecting part 2. At this time, the contact areas between the grounding wire structure and the flat iron 10 are: the contact area between the second connecting part 2 and the flat iron 10 and the contact area between the long rod stud and the flat iron 10.

[0039] In Example 1, the contact areas between the grounding wire structure and the flat iron 10 are: the contact area between the second connecting part 2 and the flat iron 10, and the contact area between the contact part 7 and the flat iron 10. The contact area between the grounding wire structure and the flat iron in Example 1 is larger than that in Example 2, and its effect in reducing contact resistance is higher than that in Example 2.

[0040] During the shipbuilding and maintenance process, the ground wire structure in Example 1 and Example 2 is selected according to the actual situation.

[0041] In summary, the adjustable welding machine grounding wire structure provided by this utility model eliminates the need for directly connecting the copper core wire of the grounding wire to the flat iron. The grounding wire structure added between the copper core wire and the flat iron enables the connection between the grounding wire and the flat iron, making the connection between the grounding wire and the flat iron more stable and convenient, and ensuring the subsequent welding quality and welding safety.

[0042] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. An adjustable welding machine grounding wire structure, characterized in that, It includes a first connecting part (1) and a second connecting part (2) that are connected to each other. A contact area (4) for a flat iron (10) can be formed between the first connecting part (1) and the second connecting part (2). A spring (5) is provided between the first connecting part (1) and the second connecting part (2). The spring (5) is connected to a fixing part (6). The fixing part (6) is connected to the first connecting part (1). A contact part (7) is connected to the spring (5). A fixing member (8) is connected to the contact part (7). The fixing member (8) can press the contact part (7) against the second connecting part (2) so that the contact part (7) contacts the flat iron (10). A grounding wire (9) is connected to the first connecting part (1) or the second connecting part (2).

2. The adjustable welding machine grounding wire structure according to claim 1, characterized in that, The ends of the first connecting part (1) and the second connecting part (2) are connected by a protrusion (3). A threaded hole is provided on the protrusion (3) and a screw (11) is connected in the threaded hole. The two ends of the screw (11) are tightened on the surface of the protrusion (3) by nuts (12). A copper core (91) of a grounding wire (9) is connected to the screw (11).

3. The adjustable welding machine grounding wire structure according to claim 1, characterized in that, The fixing part (6) is provided with a threaded hole (60) that passes through the fixing part (6).

4. The adjustable welding machine grounding wire structure according to claim 3, characterized in that, The fastener (8) is a long rod stud, and an adjustment handle (81) is connected to the long rod stud. The long rod stud can be screwed into the threaded hole (60) and then connected to the contact part (7).

5. The adjustable welding machine grounding wire structure according to claim 4, characterized in that, The contact portion (7) is provided with a threaded connection hole (70), and the long rod stud can be screwed into the threaded connection hole (70).

6. The adjustable welding machine grounding wire structure according to claim 1, characterized in that, The fixing part (6) is connected to the end face of the first connecting part (1), and the fixing part (6) completely covers the end face of the first connecting part (1).

7. The adjustable welding machine grounding wire structure according to claim 1, characterized in that, The fixing part (6) is provided with a mounting hole (61), and the spring (5) is connected in the mounting hole (61).

8. The adjustable welding machine grounding wire structure according to claim 5, characterized in that, The contact portion (7) includes a joint portion (71), a connecting portion (72) and a fitting portion (73). The joint portion (71) is connected to the spring (5), and the threaded connection hole (70) is provided on the joint portion (71) and the connecting portion (72).

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