Combined welding gun

Abstract

The utility model provides a combined welding gun, and belongs to the technical field of welding guns. The welding gun shell solves the problem that most of existing welding gun shells are fixed in a welding gun through screws and are extremely inconvenient to mount and dismount. The combined welding gun comprises a welding gun body, a welding gun head is arranged at the front end of the welding gun body, a mounting cover plate used for sealing is arranged on the welding gun body, a sealing cover plate is arranged between the welding gun body and the mounting cover plate, fixing parts are fixedly arranged on the front side and the rear side of the welding gun body, and four positioning rods are arranged at the lower end of the mounting cover plate. A connecting part is arranged in the welding gun body, a positioning assembly is arranged on the fixing part and composed of a positioning piece, a sliding rod and a reset spring, an open hole is formed in the sealing cover plate, and positioning holes are formed in the positioning rod and the connecting part. The utility model has the advantages of convenient installation and maintenance.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding torches and relates to a combined welding torch. Background Art

[0002] A welding torch refers to the part that performs welding operations during the welding process. It is a tool for gas welding, shaped like a gun, with a nozzle at the front end that sprays a high-temperature flame as a heat source. It is flexible, convenient and fast, and the process is simple. The welding torch is one of the main equipment for hot air welding. It consists of heating elements, nozzles, etc. According to its structure, there are gas welding torches, electric welding torches, fast welding torches, and automatic welding torches.

[0003] During the long-term use of the welding torch, its internal parts may be damaged. However, between the existing welding torch shells, most are fixed inside the welding torch through screws. When installing and disassembling, tools are required to remove the screws from the shell, and the operation is very cumbersome, making it inconvenient to disassemble and replace. Summary of the Invention

[0004] The purpose of the utility model is to provide a combined welding torch that is convenient to install and maintain for the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved by the following technical solutions: A combined welding torch includes a welding torch body. A welding torch head is provided at the front end of the welding torch body. It is characterized in that an installation cover plate for sealing is provided on the welding torch body. A sealing cover plate is provided between the welding torch body and the installation cover plate. Fixing parts for fixing the installation cover plate and the sealing cover plate are fixedly provided on both the front and rear sides of the welding torch body. Four positioning rods for fixing are provided at the lower end of the installation cover plate. The positioning rods and the installation cover plate are integrally formed. A connection part for the positioning rods to extend into is provided in the welding torch body at positions corresponding to the four positioning rods. A positioning component for positioning is provided on the fixing part. The positioning component consists of a positioning piece, a sliding rod, and a return spring. An opening for the positioning rod to pass through is provided on the sealing cover plate. Positioning holes for the positioning piece to pass through and be positioned are provided on both the positioning rod and the connection part. By matching the positioning piece with the positioning holes, the installation cover plate and the sealing cover plate are fixed to the welding torch body.

[0006] In the above-mentioned combined welding torch, an installation groove for installing the positioning component is provided on the inner wall of the fixing part. The sliding rod, the positioning piece, and the return spring are all arranged in the installation groove. The sliding rod slides in the installation groove. One end of the positioning piece extends out of the fixing part and is connected with a pull ring. The other end of the positioning piece extends out of the installation groove and cooperates with the positioning holes on the positioning rod and the sealing part to fix the sealing cover plate and the installation cover plate to the welding torch body.

[0007] In the above-mentioned combined welding torch, there are two positioning components provided on the fixing part, and they are arranged on the left and right sides of the fixing part.

[0008] Compared with the prior art, in this combined welding torch, the mounting cover plate is detachably fixed on the welding torch main body through the positioning components on the fixing part, which is convenient for the operator to disassemble the mounting cover plate, so as to repair and replace the internal parts. Description of the Drawings

[0009] Figure 1 It is a schematic structural view of the present utility model.

[0010] Figure 2 It is a partially sectional structural view of the present utility model.

[0011] In the figure, 1 is the welding torch main body; 2 is the welding torch head; 3 is the mounting cover plate; 4 is the sealing cover plate; 5 is the fixing part; 6 is the positioning rod; 7 is the connecting part; 8 is the positioning member; 9 is the sliding rod; 10 is the return spring; 11 is the positioning hole; 12 is the mounting groove. Detailed Embodiment

[0012] The following are specific embodiments of the present utility model and in conjunction with the drawings, the technical solutions of the present utility model will be further described, but the present utility model is not limited to these embodiments.

[0013] As Figure 1 、 Figure 2 shown, this combined welding torch includes a welding torch main body 1. A welding torch head 2 is provided at the front end of the welding torch main body 1. A mounting cover plate 3 for sealing is provided on the welding torch main body 1. A sealing cover plate 4 is provided between the welding torch main body 1 and the mounting cover plate 3. Fixing parts 5 for fixing the mounting cover plate 3 and the sealing cover plate 4 are fixedly provided on both the front and rear sides of the welding torch main body 1. The fixing parts 5 can be fixedly installed on the welding torch main body through fixing bolts. Four positioning rods 6 for fixing are provided at the lower end of the mounting cover plate 3. The positioning rods 6 and the mounting cover plate 3 are integrally formed. A connecting part 7 for the positioning rods 6 to extend into is provided in the welding torch main body at positions corresponding to the four positioning rods 6. A positioning component is provided on the fixing part 5. The positioning component is composed of a positioning member 8, a sliding rod 9 and a return spring 10. An opening for the positioning rods 6 to pass through is provided on the sealing cover plate 4. Positioning holes 11 for the positioning member 8 to pass through and be positioned are provided on both the positioning rods 6 and the connecting part 7. By matching the positioning member 8 with the positioning holes 11, the mounting cover plate 3 and the sealing cover plate 4 are fixed on the welding torch main body.

[0014] Specifically, an installation groove 12 for installing the positioning component is formed on the inner wall of the fixing portion 5. The sliding rod 9, the positioning member 8 and the return spring 10 are all arranged in the installation groove 12. The sliding rod 9 slides in the installation groove 12. One end of the positioning member 8 extends out of the fixing portion 5 and is connected with a pull ring. The other end of the positioning member 8 extends out of the installation groove 12 and cooperates with the positioning rod 6 and the positioning hole 11 on the sealing portion to fix the sealing cover plate 4 and the installation cover plate 3 on the welding torch body.

[0015] Specifically, for the installation of the installation cover plate 3, when installing the installation cover plate 3 and the sealing cover plate 4, first install the sealing cover plate 4 on the welding torch body, and then align the positioning rod 6 of the installation cover plate 3 with the opening of the sealing cover plate 4 and the opening on the connecting portion 7 of the welding torch body. Pull the pull ring to make the positioning member 8 contract into the installation groove 12, and the return spring 10 is in a compressed state. When the positioning rod 6 extends to the bottom of the connecting portion 7, release the pull ring, and the return spring 10 rebounds. The positioning member 8 extends out of the installation groove 12 and extends into the positioning hole 11 of the positioning rod 6, thereby fixing the installation cover plate 3 and the sealing cover plate 4.

[0016] Specifically, for the disassembly of the installation cover plate 3, when disassembling the installation cover plate 3 and the sealing cover plate 4, pull the pull ring to make the positioning member 8 contract into the installation groove 12, release the positioning of the positioning member 8 on the positioning rod 6, and then the positioning rod 6 can be removed from the connecting portion 7 of the welding torch body.

[0017] Specifically, there are two positioning components arranged on the fixing portion 5, and they are arranged on the left and right sides of the fixing portion 5.

[0018] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0019] Although terms such as welding torch body 1, welding torch head 2, installation cover plate 3, sealing cover plate 4, fixing portion, positioning rod 6, connecting portion 7, positioning member 8, sliding rod 9, return spring 10, positioning hole 11, installation groove 12, etc. are used more in this article, the possibility of using other terms is not excluded. Using these terms is only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A combined welding gun, comprising a welding gun body (1), wherein a welding gun head (2) is arranged at the front end of the welding gun body (1), characterized in that: The welding gun body (1) is provided with a mounting cover plate (3) for sealing, a sealing cover plate (4) is provided between the welding gun body (1) and the mounting cover plate (3), a fixing portion (5) for fixing the mounting cover plate (3) and the sealing cover plate (4) is fixedly provided on both the front and rear sides of the welding gun body (1), four positioning rods (6) for fixing are provided at the lower end of the mounting cover plate (3), the positioning rods (6) and the mounting cover plate (3) are integrally formed, and a fixing portion (5) for fixing the mounting cover plate (3) is provided in the welding gun body (1) at a position relative to the four positioning rods (6). The positioning rod (6) extends into the connecting portion (7), the fixing portion (5) is provided with a positioning assembly for positioning, the positioning assembly is composed of a positioning piece (8), a sliding rod (9) and a return spring (10), the sealing cover plate (4) is provided with an opening for the positioning rod (6) to pass through, the positioning rod (6) and the connecting portion (7) are both provided with a positioning hole (11) for the positioning piece (8) to pass through and position, and the positioning piece (8) cooperates with the positioning hole (11), so that the mounting cover plate (3) and the sealing cover plate (4) are fixed to the welding gun body (1).

2. A combined welding gun according to claim 1, characterized in that: The inner wall of the fixing portion (5) is provided with a mounting groove (12) for mounting the positioning component. The sliding rod (9), the positioning member (8) and the return spring (10) are all arranged in the mounting groove (12). The sliding rod (9) slides in the mounting groove (12). One end of the positioning member (8) extends out of the fixing portion (5) and is connected to a pull ring. The other end of the positioning member (8) extends out of the mounting groove (12) and cooperates with the positioning rod (6) and the positioning hole (11) on the sealing portion, thereby fixing the sealing cover plate (4) and the mounting cover plate (3) on the welding gun body (1).

3. A combined welding gun according to claim 1, characterized in that: There are two positioning components arranged on the fixing portion (5), and they are arranged on the left and right sides of the fixing portion (5).

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