Welding back protection tool device

Abstract

In order to simplify an existing gas protection device in welding and keep effective protection of the gas protection device on a welding seam, the utility model provides a welding back protection tool device which comprises a base frame with a gas containing cavity, a gas inlet is formed in one end of the base frame, an exhaust port is formed in the other end of the base frame, and a plurality of telescopic cylinder assemblies are arranged around the exhaust port. And a sealing blade is arranged on the outer side of the telescopic cylinder assembly. In the specific using process, a stable and pure gas environment can be provided for a welding area, and therefore the welding reliability and quality are remarkably improved. In addition, the device can be installed on a movable device in the prior art to synchronously follow a welding gun so as to stably and continuously protect a welding spot.

Description

Technical Field

[0001] The utility model relates to the technical field of welding processing protection, in particular to a welding back protection tooling device. Background Art

[0002] During the welding operation and in the short time after welding, the weld and its surrounding areas are in a relatively fragile state. This is because during the welding process, the weld metal melts and then solidifies, and at this time the metal temperature is extremely high, far exceeding the normal temperature. In such a high-temperature state, if appropriate protection measures are not taken, the weld metal is very likely to chemically react with oxygen in the air to form oxides. These oxides will not only adhere to the surface of the weld, affecting its appearance quality, but more importantly, they will penetrate into the interior of the weld, reducing the strength and toughness of the weld, thereby affecting the safety and service life of the entire welded structure.

[0003] In order to prevent the oxidation of the weld metal during welding, the industry has developed a variety of gas shielded welding technologies. Among them, tungsten inert gas shielded welding (TIG) and metal inert gas shielded welding (MIG) are two widely used shielded welding methods. In these methods, by using an inert gas (such as argon) as the shielding gas, a protective layer is formed during the welding process, thereby isolating the weld metal from contact with oxygen in the air and effectively preventing the occurrence of oxidation reactions.

[0004] However, although these methods are effective in preventing weld oxidation, they also have obvious disadvantages. In particular, these gas shielded welding systems are usually complex in structure and require professional operators to precisely control the flow rate of the shielding gas and welding parameters. In addition, if an enterprise hopes to automate the welding process, the complexity of the entire system will further increase, which not only increases the equipment cost but also increases the difficulty of maintenance and operation.

[0005] Based on such a background, how to simplify the existing gas protection device while maintaining its effective protection of the weld has become an urgent problem to be solved in the current welding technology field. Summary of the Utility Model

[0006] The utility model aims to solve the technical problems existing in the prior art and provides a welding back protection tooling device that can automatically protect the weld. The technical solution of the utility model is achieved through the following measures.

[0007] A welding back protection tooling device includes a base frame formed with a gas accommodation cavity, an air inlet is provided at one end of the base frame, an air outlet is provided at the other end of the base frame, a plurality of telescopic cylinder assemblies are arranged around the air outlet, and sealing blades are arranged outside the telescopic cylinder assemblies.

[0008] Furthermore, the telescopic cylinder assembly includes a bottom plate, a limit plate, a cylinder body, and a positioning assembly; the bottom plate and the limit plate are fixedly connected to the base frame, one end of the cylinder body is fixedly connected to the bottom plate, and a positioning assembly is provided at the other end after extending to the limit plate; it further includes a spring sleeved on the cylinder body, and the spring is located between the bottom plate and the limit plate.

[0009] Furthermore, the positioning assembly includes a positioning cap connected to the cylinder body, and a positioning bottom plate and a positioning head are arranged in the positioning cap.

[0010] Furthermore, the positioning head is a ball.

[0011] Furthermore, the exhaust port is circular, or rectangular, or triangular, or oval.

[0012] In the specific use of this application, a shielding gas is connected through the air inlet of the base frame, and the exhaust port of the base frame corresponds to the welding position, so that the shielding gas can be accurately delivered to the welding point; a plurality of telescopic cylinder assemblies are arranged at the exhaust port, and the end of the telescopic cylinder assembly abuts against the periphery of the welding position to form a flexible sealing system; in order to further enhance the sealing performance, sealing blades are arranged on the outside of the telescopic cylinder assembly. At this time, a temporary closed space is formed between the welding part and the structure of this application; when the shielding gas is connected, the outside oxygen and other gases that may interfere with the welding quality are effectively isolated through this temporary closed space. Through this structure, a stable and pure gas environment can be provided for the welding area, thereby significantly improving the reliability and quality of welding. In addition, the design of this base frame also has flexibility and adaptability. It can also be installed on a movable device in the prior art to synchronously follow the welding torch to continuously and stably protect the welding point. This not only enables the structure of this application to continuously play a role during the welding process, but also can continue to protect the weld seam for a short time after the welding is completed, thereby further consolidating the welding quality. Description of the Drawings

[0013] Figure 1 is the first schematic diagram of the welding back protection tooling device of the present utility model;

[0014] Figure 2 is the second schematic diagram of the welding back protection tooling device of the present utility model;

[0015] Figure 3 is the first perspective schematic diagram of the telescopic cylinder assembly of the welding back protection tooling device of the present utility model;

[0016] Figure 4 is the enlarged schematic diagram of the positioning assembly of the welding back protection tooling device of the present utility model.

[0017] Reference Signs:

[0018] 100 Base frame, 110 Air inlet, 120 Exhaust port, 130 Telescopic cylinder assembly, 131 Bottom plate, 132 Limiting plate, 133 Cylinder body, 134 Positioning cap, 135 Positioning bottom plate, 136 Positioning head, 137 Spring, 200 Gas accommodation chamber, 210 Sealing blade. Detailed implementation manners

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0020] In the description of the present utility model, unless otherwise specified and defined, it should be noted that the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the communication inside two elements. It can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations.

[0021] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0022] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0023] As shown in the atta Figures 1-4 ched drawings, a welding back protection tooling device includes a base frame 100 forming a gas accommodation chamber 200. One end of the base frame 100 is provided with an air inlet 110, the other end of the base frame 100 is provided with an exhaust port 120, a plurality of telescopic cylinder assemblies 130 are arranged around the exhaust port 120, and sealing blades 210 are arranged outside the telescopic cylinder assemblies 130.

[0024] In the specific use of this application, a shielding gas is connected through the air inlet 110 of the base frame 100, and the exhaust port 120 of the base frame 100 corresponds to the welding position, so that the shielding gas can be accurately delivered to the welding point. A plurality of telescopic cylinder assemblies 130 are arranged at the exhaust port 120, and the end of the telescopic cylinder assembly 130 abuts against the periphery of the welding position to form a sealing system that adapts to different curvature surfaces of the welded workpiece. To further enhance the sealing performance, sealing vanes 210 are arranged outside the telescopic cylinder assembly 130. At this time, a temporary closed space is formed between the welding part and the structure of this application. When the shielding gas is connected, the outside oxygen and other gases that may interfere with the welding quality are effectively isolated through this temporary closed space. Through this structure, a stable and pure gas environment can be provided for the welding area, thereby significantly improving the reliability and quality of welding. In addition, the design of this base frame 100 also has flexibility and self - adaptability. It can also be installed on a movable device in the prior art to synchronously follow the welding torch to continuously and stably protect the welding point. This not only enables the structure of this application to continuously play a role during the welding process, but also can continue to protect the weld seam for a short time after the welding is completed, thereby further consolidating the welding quality.

[0025] Further, in other embodiments of this application, the telescopic cylinder assembly 130 includes a bottom plate 131, a limiting plate 132, a cylinder body 133 and a positioning component; wherein the bottom plate 131 and the limiting plate 132 are fixedly connected to the base frame 100, one end of the cylinder body 133 is fixedly connected to the bottom plate 131, and the other end extends to the limiting plate 132 and is also provided with a positioning component; a spring 137 sleeved on the cylinder body 133 is also included, and the spring 137 is located between the bottom plate 131 and the limiting plate 132. In the specific implementation, the bottom plate 131 serves as the base of the telescopic cylinder assembly 130 and is fixedly connected to the base frame 100 to provide stable support for the entire assembly; its stability directly affects the positioning accuracy and service life of the telescopic cylinder assembly 130. The limiting plate 132 plays a role in restricting the telescopic range of the cylinder body 133 to ensure that the cylinder body 133 will not over - extend during normal operation, thereby ensuring the stability and sealing performance of the overall structure. At the same time, the space between the limiting plate 132 and the bottom plate 131 provides an installation position for the spring 137. The cylinder body 133 is the core component of the telescopic cylinder assembly 130. In this embodiment, a steel pipe can be selected. One end of it is fixedly connected to the bottom plate 131, and the other end extends to the limiting plate 132 and is precisely positioned through the positioning component. The spring 137 is sleeved on the cylinder body 133 and is located between the bottom plate 131 and the limiting plate 132; it provides elastic force for the cylinder body 133 to ensure that the end of the cylinder body 133 can always abut against the peripheral position of the welding point, thereby maintaining the sealing and stability of the structure of this application.

[0026] Further, in other embodiments of the present application, the positioning component includes a positioning cap 134 connected to the cylinder body 133, and a positioning base plate 135 and a positioning head 136 are arranged inside the positioning cap 134. In specific implementation, the positioning component is a key component for determining the temporary sealed space, including the positioning cap 134 connected to the cylinder body 133, and the positioning base plate 135 and the positioning head 136 are arranged inside the positioning cap 134. The positioning base plate 135 provides stable support for the positioning head 136, while the positioning head 136 directly abuts against the peripheral surface of the welding position, ensuring that the end of the telescopic cylinder assembly 130 can be accurately aligned with the welding area, thereby forming an effective seal. Further, the positioning head 136 adopts a ball design, which not only reduces the frictional resistance, making the telescopic cylinder assembly 130 move and position more smoothly, but also improves the positioning accuracy and stability.

[0027] Further, in specific implementation, the exhaust port 120 has different shapes such as circular, rectangular, triangular, oval, etc. The selection of these shapes is aimed at adapting to different welding environments and gas flow requirements. A reasonable shape of the exhaust port 120 can ensure the uniform distribution of the shielding gas in the welding area, effectively exhaust oxygen and other harmful gases, thereby further improving the welding quality.

[0028] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A welding back protection tooling device, characterized in that: It includes a base frame (100) formed with a gas accommodation chamber (200). One end of the base frame (100) is provided with an air inlet (110), the other end of the base frame (100) is provided with an air outlet (120), a plurality of telescopic cylinder assemblies (130) are arranged around the air outlet (120), and a sealing blade (210) is arranged outside the telescopic cylinder assemblies (130).

2. The welding back protection tooling device according to claim 1, characterized in that: The telescopic cylinder assembly (130) includes a bottom plate (131), a limit plate (132), a cylinder body (133) and a positioning assembly. The bottom plate (131) and the limit plate (132) are fixedly connected to the base frame (100). One end of the cylinder body (133) is fixedly connected to the bottom plate (131), and a positioning assembly is further provided after the other end extends to the limit plate (132). It also includes a spring (137) sleeved on the cylinder body (133), and the spring (137) is located between the bottom plate (131) and the limit plate (132).

3. The welding back protection tooling device according to claim 2, characterized in that: The positioning assembly includes a positioning cap (134) connected to the cylinder body (133), and a positioning bottom plate (135) and a positioning head (136) are arranged in the positioning cap (134).

4. The welding back protection tooling device according to claim 3, wherein: The positioning head (136) is a ball.

5. The welding back protection tooling device according to claim 1 or 2 or 3 or 4, characterized in that: The air outlet (120) is circular, or rectangular, or triangular, or oval.

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