Arc discharge type welding gun

Abstract

The utility model discloses an arc discharge type welding gun, which relates to the technical field of welding guns and comprises a gun body. The bottom end of the gun body is fixedly connected with a handle; a switch button is mounted on the handle; the interior of the gun body is fixedly connected with a main shaft; the interior of the gun body is fixedly connected with a linkage mechanism; the main shaft is arranged on the left side of the linkage mechanism; the switch button is pressed to start, the coil generates a magnetic field to adsorb the armature, the stud is driven to lift to trigger an electric arc, the electric arc melts the end of the stud and the surface of base metal to form a molten pool, and after power is off, the spring reset system pushes the stud to be pressed into the molten pool to complete welding. The splash-proof steel ring can effectively and accurately prevent welding splashing, and the special chuck can be used for welding all types of screws.

Description

Technical Field

[0001] This utility model relates to the field of welding torch technology, specifically to a pull-arc welding torch. Background Technology

[0002] An arc welding torch is a specialized tool that uses an electric arc to quickly weld studs to the base material. Its core principle is to melt the surface of the workpiece with an instantaneous electric arc, and then apply mechanical pressure to complete the metallurgical bond. This technology is widely used in automobile manufacturing, steel structure construction, shipbuilding and other fields, and is especially suitable for welding thin plates or irregularly shaped parts.

[0003] The existing process of an arc welding torch is as follows: first, the stud is inserted into the conductive chuck so that its end contacts the base material; after power is applied, the coil generates a magnetic field that attracts the armature, causing the stud to rise and ignite an electric arc; the electric arc melts the end of the stud and the surface of the base material to form a molten pool; after power is cut off, the spring reset system pushes the stud into the molten pool to complete the welding.

[0004] Traditional welding torches require multi-stage transmission or mechanical adjustment devices to adapt to different stud sizes. The adjustment process is time-consuming and prone to coaxiality deviation, affecting welding accuracy. In addition, insufficient coil adsorption or component wear can easily lead to welding interruption, requiring frequent maintenance. During the welding process, arc fluctuations or loose clamping can easily cause spatter. Existing welding torches mostly rely on external protective rings or gas isolation, which have limited protective effects and increase costs. At the same time, the lack of a precise positioning structure leads to unstable molten pool formation, affecting welding quality. Utility Model Content

[0005] The purpose of this invention is to provide an arc welding torch to solve the technical problem of spatter caused by arc fluctuations or loose clamping during welding in the prior art.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0007] An arc welding torch includes a torch body; a handle is fixedly connected to the bottom end of the torch body; a switch button is installed on the handle; a main shaft is fixedly connected inside the torch body; a linkage mechanism is fixedly connected inside the torch body; and the main shaft is located on the left side of the linkage mechanism.

[0008] As a further embodiment of this utility model: a lifting coil is fixedly connected inside the gun body; the linkage mechanism includes a moving iron core and a pull ring, the pull ring and the moving iron core are movably connected, and the moving iron core interacts with the lifting coil; the moving iron core in the linkage mechanism is fixedly connected to the main shaft at both ends;

[0009] The main shaft and the lifting coil are arranged side by side inside the gun body; the main shaft and the lifting coil are independent of each other and do not directly contact each other; the main shaft serves as a mechanical support structure, and the lifting coil serves as an electromagnetic drive component; the lifting coil interacts with the moving iron core in the linkage mechanism to drive the moving iron core to move.

[0010] As a further embodiment of this utility model: a lifting adjustment mechanism is fixedly connected inside the gun body; the lifting adjustment mechanism is located on the side close to the lifting coil.

[0011] As a further embodiment of this utility model: a splash-proof steel ring is fixedly connected to the side end of the gun body, and the splash-proof steel ring is sleeved on the outside of the screw.

[0012] The beneficial effects of this utility model are as follows: Pressing the switch button starts the process, and the coil generates a magnetic field that attracts the armature, causing the stud to rise and trigger an electric arc. The electric arc melts the end of the stud and forms a molten pool with the surface of the base material. After the power is cut off, the spring reset system pushes the stud into the molten pool to complete the welding. During welding, the screw enters the interior of the anti-spatter steel ring, which is fitted over the outside of the screw. The anti-spatter steel ring can effectively and precisely prevent welding spatter. The operation is simple, and the welding sequence can be quickly completed. With the help of a special chuck, all types of screws can be welded. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the gun body structure in this utility model;

[0016] Figure 3 This is a schematic diagram of the splash-proof steel ring structure in this utility model;

[0017] In the diagram: 1. Gun body; 2. Handle; 3. Switch button; 4. Main shaft; 5. Linkage mechanism; 6. Lifting coil; 7. Lifting adjustment mechanism; 8. Splash guard. Detailed Implementation

[0018] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figures 1-3As shown, an arc welding torch includes a torch body 1; a handle 2 is fixedly connected to the bottom end of the torch body 1; a switch button 3 is installed on the handle 2; a main shaft 4 is fixedly connected inside the torch body 1; a linkage mechanism 5 is fixedly connected inside the torch body 1; and the main shaft 4 is located on the left side of the linkage mechanism 5.

[0020] During operation, the operator holds handle 2 and presses switch button 3 to start the process. The coil generates a magnetic field that attracts the armature, causing the stud to rise and ignite an electric arc. The electric arc melts the stud end and forms a molten pool with the base material surface. After the power is cut off, the spring reset system pushes the stud into the molten pool to complete the welding. During welding, the screw enters the interior of the anti-spatter steel ring 8, which is fitted over the outside of the screw. The anti-spatter steel ring 8 can effectively and precisely prevent welding spatter. The operation is simple and allows for a relatively fast welding sequence. With the help of a special chuck, all types of screws can be welded.

[0021] A lifting coil 6 is fixedly connected inside the gun body 1; the linkage mechanism 5 includes a moving iron core and a pull ring, the pull ring and the moving iron core are movably connected, and the moving iron core interacts with the lifting coil 6; the moving iron core in the linkage mechanism 5 is fixedly connected to the main shaft 4 at both ends;

[0022] The main shaft 4 and the lifting coil 6 are arranged side by side inside the gun body 1; the main shaft 4 and the lifting coil 6 are independent of each other and do not directly contact each other; the main shaft 4 serves as a mechanical support structure, and the lifting coil 6 serves as an electromagnetic drive component; the lifting coil 6 interacts with the moving iron core in the linkage mechanism 5 to drive the moving iron core to move.

[0023] When the lifting coil 6 is energized, it generates a magnetic field, which drives the moving iron core to move towards the stationary iron core, thereby causing the main shaft to lift the stud upward and form an electric arc. It is one of the key components for realizing the welding process.

[0024] The gun body 1 is internally fixed with a lifting adjustment mechanism 7; the lifting adjustment mechanism 7 is located on the side close to the lifting coil 6.

[0025] The lifting adjustment mechanism 7 changes the lifting gap between the moving iron core and the stationary iron core by adjusting the position of the stationary iron core, thereby adapting to studs of different lengths or different welding process requirements, and ensuring the stability and reliability of welding quality.

[0026] A splash guard 8 is fixed to the side end of the gun body 1, and the splash guard 8 is fitted over the outside of the screw.

[0027] During welding, the screw enters the interior of the anti-spatter steel ring 8, and the anti-spatter steel ring 8 is fitted over the outside of the screw. The anti-spatter steel ring 8 can effectively and precisely prevent welding spatter before welding operations are performed.

[0028] The working principle of this invention is as follows: During operation, the operator holds handle 2 and presses switch button 3 to start the process. The coil generates a magnetic field that attracts the armature, causing the stud to rise and ignite an electric arc. The arc melts the stud end and forms a molten pool with the base material surface. After power is cut off, the spring reset system pushes the stud into the molten pool to complete the welding. During welding, the screw enters the interior of the anti-spatter steel ring 8, which is fitted over the outside of the screw. The anti-spatter steel ring 8 effectively and precisely prevents welding spatter. The operation is simple and allows for a relatively fast welding sequence. With the help of a special chuck, it can weld all types of screws. The front end of the spindle 4 is connected to an integrated chuck seat for mounting the stud. During the welding process, the spindle 4 can slide axially. The main shaft 4 feeds and lifts the stud, and also provides welding current to the stud. The linkage mechanism 5 fixes the main shaft 4 and the moving iron core together, ensuring that the main shaft 4 and the moving iron core can move synchronously during the process, thereby ensuring the coordination and stability of the welding process. When the lifting coil 6 is energized, it generates a magnetic field, which drives the moving iron core to move towards the stationary iron core, thereby causing the main shaft to lift the stud upward and form an electric arc. It is one of the key components for realizing the welding process. The lifting adjustment mechanism 7 changes the lifting gap between the moving iron core and the stationary iron core by adjusting the position of the stationary iron core, thereby adapting to studs of different lengths or different welding process requirements, ensuring the stability and reliability of welding quality.

[0029] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A drawn arc welding torch characterized by, It includes a gun body (1); the bottom end of the gun body (1) is fixedly connected with a handle (2); the handle (2) is provided with a switch button (3); the inside of the gun body (1) is fixedly connected with a main shaft (4); the inside of the gun body (1) is fixedly connected with a linkage mechanism (5); the main shaft (4) is arranged on the left side of the linkage mechanism (5).

2. A torch according to claim 1, wherein The inside of the gun body (1) is fixedly connected with a lifting coil (6). The linkage mechanism (5) includes a moving iron core and a pull ring, the pull ring is movably connected with the moving iron core, the moving iron core interacts with the lifting coil (6); the moving iron core in the linkage mechanism (5) and the main shaft (4) are fixedly connected at the tail end. The main shaft (4) and the lifting coil (6) are arranged side by side in the inside of the gun body (1); the main shaft (4) and the lifting coil (6) are independent of each other and do not directly contact; the main shaft (4) serves as a mechanical support structure, and the lifting coil (6) serves as an electromagnetic driving component; the lifting coil (6) interacts with the moving iron core in the linkage mechanism (5) to drive the moving iron core to move.

3. A torch according to claim 1, wherein The inside of the gun body (1) is fixedly connected with a lifting adjusting mechanism (7); the lifting adjusting mechanism (7) is arranged on one side close to the lifting coil (6).

4. A torch according to claim 1 wherein, The side end of the gun body (1) is fixedly connected with a splash-proof steel ring (8), and the splash-proof steel ring (8) is sleeved outside the screw.

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