Handheld welding machine with auxiliary stabilizing structure

Abstract

The utility model discloses a handheld welding machine with an auxiliary stabilizing structure, and particularly relates to the technical field of welding equipment, the handheld welding machine comprises a welding machine body, a welding nozzle, an installation fixing disc and a telescopic rod, the welding nozzle is installed on the left side of the welding nozzle, the outer surface of the telescopic rod is sleeved with a spring, and a universal wheel is installed on the left side of a fixing plate; the universal wheels are attached to the ship body, due to the fact that the surface of the ship body is uneven, the telescopic rods can correspondingly stretch out and draw back under the action of the springs, the universal wheels can fluctuate along with the curved surface so as to adapt to the curved surface change of the ship body, and it is ensured that a welding machine can stably route along a welding seam; welding shaking and deviation caused by the irregular surface of a ship body are effectively avoided, the welding quality and the uniformity of welding seams are greatly improved, the telescopic rods, the universal wheels and other components rotate backwards to be folded and attached to the welding machine body, it is ensured that the angle and the position of the welding machine are adjusted more freely, welding operation is more flexible and accurate, and the welding efficiency is improved. And unable application due to space limitation is avoided.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and more specifically, to a handheld welding machine with an auxiliary stabilizing structure. Background Technology

[0002] Welding machines are electrical appliances that provide power with certain characteristics for welding. Welding is widely used in various industrial fields, such as aerospace, shipbuilding, automobiles, and containers, due to its advantages of flexibility, simplicity, convenience, strength and reliability, and the fact that the welded material can even have the same strength as the base material.

[0003] A search revealed that patent publication number CN216706228U discloses a convenient new handheld welding machine, which solves the problems of inconvenient wiring, cumbersome installation, easy damage, and high failure rate of existing handheld welding machines. This convenient new handheld welding machine includes a housing, within which are housed a transformer, a first PCB circuit board, a second PCB circuit board, a heat sink, a positive output connector, a negative output connector, and adjustable potentiometers. The positive output connector is connected to a positive wire, and the negative output connector is connected to a negative wire. One end of the first PCB circuit board extends towards the transformer to form a PCB extension board. Three transformer secondary wires and one negative wire are fixedly connected to the PCB extension board by welding. The positive wire is screwed to the heat sink. The adjustable potentiometers are arranged in a set and are located on the second PCB circuit board. Adjustment windows are provided on the housing corresponding to the positions of the adjustable potentiometers. This utility model has the advantages of convenient installation, resistance to damage, and easy testing. During the development of this utility model, the inventors discovered the following problems with the existing technology:

[0004] Existing handheld welding machines are problematic because the surface of a ship's hull is a complex curved structure, not a flat plane. Ships sailing at sea have hull designs that take into account many factors such as hydrodynamics, resulting in various curvatures and irregular shapes in the hull. Furthermore, different hulls have very different structures. As a result, it is very difficult to keep the welding machine stable by hand during the welding process. This leads to vibrations and deviations caused by the unevenness of the hull surface, which in turn affects the welding accuracy.

[0005] Therefore, a handheld welding machine with an auxiliary stabilization structure is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a handheld welding machine with an auxiliary stabilization structure to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a handheld welding machine with an auxiliary stabilization structure, comprising a welding machine body, a welding nozzle, a mounting plate, and a telescopic rod, characterized in that: a movable handle is provided at the bottom of the welding machine body, a switch button is provided on the left side of the upper end of the movable handle, a welding head is provided on the left side of the welding machine body, the welding nozzle is installed on the left side of the welding head, and an external thread is provided on the outer surface of the welding nozzle;

[0008] The mounting plate is installed on the outer surface of the welding nozzle. The inner cavity of the mounting plate has a threaded hole. An extended sleeve is provided on the right side of the mounting plate. The telescopic rod is installed on the edge of the mounting plate. A damping shaft is installed at the connection between the telescopic rod and the mounting plate. A spring is sleeved on the outer surface of the telescopic rod. A fixing plate is provided on the left side of each of the four sets of telescopic rods. A caster wheel is installed on the left side of the fixing plate. Connecting rings are provided on the front and rear ends of the welding machine body. An elastic neck rope is installed in the inner cavity of the two sets of connecting rings.

[0009] Preferably, the threaded hole engages with the external thread, and the mounting plate is fixed by being fitted into the outer surface of the welding nozzle through the threaded hole and engaging with the external thread.

[0010] Preferably, the mounting plate and the extended sleeve are connected to each other, and the extended sleeve is sequentially fitted onto the outer surfaces of the welding nozzle and the welding head along with the mounting plate and then abuts against each other.

[0011] Preferably, the telescopic rod is provided in four sets, and the four sets of telescopic rods are movably connected by four sets of damping shafts distributed around the edge of the mounting plate.

[0012] Preferably, the two ends of the spring abut against the mounting plate and the fixing plate respectively, and the fixing plate and the caster are movably connected by a pivot.

[0013] Preferably, the two ends of the elastic neck strap are respectively connected to the two sets of connecting rings, and the elastic neck strap is made of rubber.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. Compared with existing technologies, this handheld welding machine with auxiliary stabilization structure fits snugly against the hull through casters. Due to the unevenness of the hull surface, the telescopic rod will extend and retract accordingly under the action of springs, so that the casters will undulate with the curved surface to adapt to the changes in the hull's curvature. This ensures that the welding machine can stably follow the weld line, effectively avoiding welding vibration and deviation caused by the irregularity of the hull surface, and greatly improving the welding quality and weld uniformity.

[0016] 2. Compared with the existing technology, this handheld welding machine with auxiliary stabilization structure can easily enter areas such as narrow spaces on the hull and weld seams where guide wheels are inconvenient to use when welding by rotating the telescopic rod and universal wheels backward and folding them into the welding machine body. This ensures more freedom to adjust the angle and position of the welding machine, making the welding operation more flexible and precise, and avoiding being unable to perform due to space limitations. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present utility model.

[0018] Figure 2 This is a front view structural diagram of the welding head of this utility model.

[0019] Figure 3 This is a side view of the mounting plate structure of this utility model.

[0020] Figure 4 This utility model Figure 1 A magnified schematic diagram of the structure at point A in the diagram.

[0021] The attached diagram is labeled as follows: 1. Welding machine body; 2. Moving handle; 3. Switch button; 4. Welding head; 5. Welding nozzle; 6. External thread; 7. Mounting plate; 71. Damping shaft; 8. Threaded hole; 9. Extended sleeve; 10. Telescopic rod; 11. Spring; 12. Fixing plate; 13. Caster wheel; 14. Connecting ring; 15. Elastic neck rope. Detailed Implementation

[0022] 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.

[0023] Example 1

[0024] As attached Figures 1 to 4 The handheld welding machine shown includes a welding machine body 1, a welding nozzle 5, a mounting plate 7 and a telescopic rod 10. A movable handle 2 is provided at the bottom of the welding machine body 1. A switch button 3 is provided on the left side of the upper end of the movable handle 2. A welding head 4 is provided on the left side of the welding machine body 1. The welding nozzle 5 is installed on the left side of the welding head 4. An external thread 6 is provided on the outer surface of the welding nozzle 5.

[0025] The mounting plate 7 is installed on the outer surface of the welding nozzle 5. The inner cavity of the mounting plate 7 has a threaded hole 8. An extension sleeve 9 is provided on the right side of the mounting plate 7. The telescopic rod 10 is installed at the edge of the mounting plate 7. A damping shaft 71 is installed at the connection between the telescopic rod 10 and the mounting plate 7. A spring 11 is sleeved on the outer surface of the telescopic rod 10. A fixing plate 12 is provided on the left side of each of the four sets of telescopic rods 10. A caster wheel 13 is installed on the left side of the fixing plate 12. A connecting ring 14 is provided on the front and rear ends of the welding machine body 1. An elastic neck rope 15 is installed in the inner cavity of the two sets of connecting rings 14.

[0026] The movable handle 2 allows welders to easily move the welding machine body 1 on the hull, whether on a flat deck or a sloped section of the hull, ensuring flexible control of the welding machine body 1's position. The switch button 3 is located on the upper left side of the movable handle 2, conforming to ergonomics. When holding the movable handle 2, the welder's fingers can naturally and conveniently touch the switch button 3 without requiring significant additional movements, allowing for quick start or stop of welding operations and improving work efficiency. The mounting plate 7 is installed on the outer surface of the welding nozzle 5, and its inner cavity has a threaded hole 8. The right side of the mounting plate 7... An extended sleeve 9 is provided on the side. The mounting plate 7, damping shaft 71, telescopic rod 10, spring 11, fixing plate 12 and universal wheel 13 form a guide wheel auxiliary stabilization structure. The mounting plate 7 not only provides a stable connection base for the telescopic rod 10, but its internal threaded hole 8 matches the external thread 6 of the welding nozzle 5 to ensure the firmness and stability of the installation. Even if the welding machine is subjected to a certain vibration or external force, this guide wheel auxiliary stabilization structure can be guaranteed not to loosen or shift. The extended sleeve 9 further extends the mounting plate 7, increasing the contact area with the welding head 4 and welding nozzle 5 for limiting the position.

[0027] The telescopic rod 10 is installed on the edge of the mounting plate 7. The telescopic rod 10 is connected to the mounting plate 7 via a damping shaft 71, allowing the telescopic rod 10 to rotate flexibly and adjust its angle. The damping shaft 71 resembles tiny protrusions on a gear; these protrusions are not as prominent as the teeth on a gear, thus preventing it from loosening and losing its original support when acting on the hull surface. The spring 11, sleeved on the telescopic rod 10, acts as a buffer and self-adaptive mechanism, ensuring stability after adjustment to a suitable position and preventing erratic swaying. This allows the telescopic rod 10 in the guide wheel-assisted stabilization structure to be folded backward to fit against the welding machine body 1, exposing the welding nozzle 5, during welding. During the welding process, the welder can precisely adjust the position of the casters 13 according to the actual conditions of the hull surface, such as the curvature of the surface and the direction of the weld seam, to ensure that the welding machine can move smoothly along the weld seam. The front and rear ends of the welding machine body 1 are equipped with connecting rings 14, and the inner cavity of the two sets of connecting rings 14 is equipped with an elastic neck rope 15. The connecting rings 14 and the elastic neck rope 15 on the front and rear ends of the welding machine body 1 provide a safe and convenient way for the welder to carry the equipment. When the welding machine needs to be moved frequently or when working at height, the welder can hang the elastic neck rope 15 around his neck. This way, even if his hands are temporarily removed from the welding machine to adjust the welding position or change the welding materials, the welding machine can be prevented from falling.

[0028] Example 2

[0029] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0030] In a preferred embodiment, the threaded hole 8 engages with the external thread 6, and the mounting plate 7 is fixed by engaging with the external thread 6 on the outer surface of the welding nozzle 5 through the threaded hole 8. Furthermore, this tight threaded connection ensures that the mounting plate 7 and the welding nozzle 5 will not easily loosen or separate. The threaded connection makes the disassembly of the mounting plate 7 relatively easy. Workers only need to operate according to the direction of the thread to quickly remove or reinstall the mounting plate 7 from the welding nozzle 5.

[0031] In a preferred embodiment, the mounting plate 7 and the extension sleeve 9 are connected to each other. The extension sleeve 9 is sequentially fitted onto the outer surfaces of the welding nozzle 5 and the welding head 4 along with the mounting plate 7 and then abuts against each other. Furthermore, by connecting and tightly abutting against the outer surfaces of the welding nozzle 5 and the welding head 4, a more stable overall structure is formed. During the welding process, the welding machine may be subjected to forces in various directions. The tight connection and abutting method can effectively disperse stress and avoid damage at the thread.

[0032] In a preferred embodiment, four sets of telescopic rods 10 are provided. The four sets of telescopic rods 10 are movably connected around the edge of the mounting plate 7 by four sets of damping pivots 71. Furthermore, in hull welding, the weld may be located on surfaces with various angles and curvatures. The four sets of telescopic rods 10 distributed around the edge can be flexibly adjusted in multiple directions, allowing the welding machine to better adapt to the complex curved shape of the hull. They can also be folded back and fitted to the outer surface of the welding machine body 1 by the damping pivots 71, thereby exposing the welding nozzle 5. This ensures that welding operations can be carried out flexibly in areas such as narrow spaces, avoiding spatial limitations.

[0033] In a preferred embodiment, the two ends of the spring 11 abut against the mounting plate 7 and the fixing plate 12, respectively. The fixing plate 12 and the caster 13 are movably connected by a pivot. Furthermore, the abutment design of the spring 11 enables the welding machine to adapt when moving on the hull surface. When the welding machine encounters minor undulations or unevenness on the hull surface, the spring 11 can buffer and adapt to these changes by extending and retracting, and continue to maintain stable movement. The movable connection between the fixing plate 12 and the caster 13 by the pivot gives the caster 13 the ability to turn flexibly. During the welding process, when it is necessary to move the welding machine along the curved weld seam or on the hull surface at different angles, the caster 13 can rotate freely according to the actual situation, easily change the direction of movement, and make the operation of the welding machine more convenient and smooth.

[0034] In a preferred embodiment, the two ends of the elastic neck strap 15 are respectively connected to two sets of connecting rings 14. The elastic neck strap 15 is made of rubber. Furthermore, the elastic neck strap 15 can hang the welding equipment around the welder's neck. This prevents the welding equipment from falling even if the hands are temporarily removed from the welding machine to adjust the welding position or change the welding materials. The rubber material has a certain degree of flexibility and elasticity. When the welder hangs it around his neck, it can naturally stretch and bend according to the body's movements without causing excessive pressure or discomfort to the neck.

[0035] The working process of this utility model is as follows: First, when performing hull welding operations, the welder moves the welding machine to the starting welding position by moving the handle 2. After reaching the welding position, the welder touches the switch button 3 on the upper left side of the handle 2 to start the welding machine and prepare for welding operations. At this time, the mounting plate 7 installed on the outer surface of the welding nozzle 5 is tightly connected to the external thread 6 of the welding nozzle 5 by its threaded hole 8, and the contact area with the welding head 4 is extended by the extension sleeve 9. This ensures that the guide wheel auxiliary stabilization structure composed of the mounting plate 7, damping shaft 71, telescopic rod 10, spring 11, fixing plate 12 and universal wheel 13 is firmly fixed on the welding machine and will not loosen or shift due to the vibration of the welding machine or the external force during the subsequent welding process, thus providing a solid foundation for the subsequent stable welding operation.

[0036] As welding progresses, if the hull surface is curved or uneven, the four sets of telescopic rods 10 surrounding the edge of the mounting plate 7 come into play. The springs 11 sleeved on the telescopic rods 10 automatically extend and retract according to the undulations of the hull surface, continuously adapting to different hull surface curves, ensuring that the welding machine can stably follow the weld line and maintain the stability of the welding machine. This allows the four sets of casters 13 to move closely against the hull surface. The outer surface of the damping shaft 71 has a structure similar to tiny protrusions, which not only ensures the stability of the telescopic rods 10 after angle adjustment, but also prevents excessive loosening due to external force when in contact with the hull. When welding along a curved weld seam is required, the pivot connection between the mounting plate 12 and the casters 13 allows the casters 13 to turn flexibly. The welding machine can naturally change its direction of movement along the curve of the weld seam. The welder only needs to gently push the welding machine to achieve a smooth welding operation.

[0037] In some special operating scenarios, when welding in the confined space of a ship's hull, the welder can fold the four sets of telescopic rods 10 backward through the damping pivot 71, so that they fit against the outer surface of the welding machine body 1, thereby exposing the welding nozzle 5. In this way, the welding machine can smoothly enter the confined space, avoiding the situation where welding operations cannot be carried out due to obstruction by the auxiliary stabilizing structure. In addition, when the welding machine is at a high place or needs to be moved frequently, the welder can hang the elastic neck rope 15 around his neck and wrap it around the two sets of connecting rings 14. Due to the flexibility and elasticity of its rubber material, it can not only effectively prevent the welding machine from falling when the hands are removed from the welding machine, ensuring the safety of the equipment, but also make the welder feel comfortable during operation, without too much discomfort caused by the restraint of the neck rope, so that he can focus more on the welding work. The above is the working principle of this handheld welding machine with an auxiliary stabilizing structure.

Claims

1. A handheld welding machine with an auxiliary stabilizing structure, comprising a welding machine body (1), a welding nozzle (5), a mounting plate (7), and a telescopic rod (10), characterized in that: The bottom of the welding machine body (1) is provided with a moving handle (2), and a switch button (3) is provided on the left side of the upper end of the moving handle (2). The left side of the welding machine body (1) is provided with a welding head (4), and the welding nozzle (5) is installed on the left side of the welding head (4). The outer surface of the welding nozzle (5) is provided with an external thread (6). The mounting plate (7) is installed on the outer surface of the welding nozzle (5). The inner cavity of the mounting plate (7) is provided with a threaded hole (8). An extended sleeve (9) is provided on the right side of the mounting plate (7). The telescopic rod (10) is installed on the edge of the mounting plate (7). A damping shaft (71) is installed at the connection between each set of telescopic rods (10) and the mounting plate (7). A spring (11) is sleeved on the outer surface of the telescopic rod (10). A fixing plate (12) is provided on the left side of each of the four sets of telescopic rods (10). A caster wheel (13) is installed on the left side of the fixing plate (12). A connecting ring (14) is provided on the front and rear ends of the welding machine body (1). An elastic neck rope (15) is installed in the inner cavity of the two sets of connecting rings (14).

2. A handheld welding machine with an auxiliary stabilization structure according to claim 1, characterized in that: The threaded hole (8) engages with the external thread (6), and the mounting plate (7) is fixed by being fitted into the outer surface of the welding nozzle (5) through the threaded hole (8) and engaging with the external thread (6).

3. A handheld welding machine with an auxiliary stabilization structure according to claim 2, characterized in that: The mounting plate (7) is connected to the extended sleeve (9). The extended sleeve (9) is inserted into the outer surface of the welding nozzle (5) and the welding head (4) in sequence with the mounting plate (7) and then abuts against each other.

4. A handheld welding machine with an auxiliary stabilization structure according to claim 1, characterized in that: The telescopic rod (10) is provided in four sets, and the four sets of telescopic rods (10) are respectively connected to the edge of the mounting plate (7) by four sets of damping shafts (71).

5. A handheld welding machine with an auxiliary stabilization structure according to claim 1, characterized in that: The two ends of the spring (11) abut against the mounting plate (7) and the fixing plate (12) respectively, and the fixing plate (12) and the universal wheel (13) are movably connected by a rotating shaft.

6. A handheld welding machine with an auxiliary stabilization structure according to claim 1, characterized in that: The two ends of the elastic neck rope (15) are respectively connected to the two sets of connecting rings (14), and the elastic neck rope (15) is made of rubber.

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