A continuous argon arc welding back of weld protection device

Abstract

The utility model relates to continuous argon arc welding technical field, and disclose a kind of continuous argon arc welding weld back protection device, including partition disc A, the inner wall of partition disc A is provided with recess A, the upper end of partition disc A is movably connected with protective shell, the upper end of protective shell is fixedly connected with pressurizing column, the side of pressurizing column is fixedly installed with spray head, the side of pressurizing column is provided with screw groove, the upper end of protective shell is fixedly installed with laser lamp, the side of laser lamp is provided with laser port. This continuous argon arc welding weld back protection device, put device into pipeline, rotate knob and adjust hydraulic rod pressure to, limit column tight inner wall of pipeline, anti-slip mat is attached without loosening, open power supply, laser projection positioning point to ring gap starting point, adjust device position to make positioning point and ring gap alignment, connect argon gas delivery pipe to screw groove.

Description

Technical Field

[0001] This utility model relates to the field of continuous argon arc welding technology, specifically a back-side protection device for continuous argon arc welding welds. Background Technology

[0002] In continuous argon arc welding, the quality of the back-side protection of the weld directly determines the mechanical properties and corrosion resistance of the weld joint. Traditional back-side protection methods for welds mainly have the following problems.

[0003] Argon gas needs to be filled into the entire interior of the workpiece, which consumes a large amount of argon gas, resulting in high costs and making it unsuitable for long-distance pipeline welding. Traditional fixed structures are only suitable for single pipe diameters or plate thicknesses. When changing workpieces, the support needs to be readjusted, which is cumbersome. Furthermore, it is not adaptable to irregular workpieces. It relies on manual adjustment of the protective gas nozzle position, which can easily lead to insufficient protection due to alignment deviations. This is especially true when welding in narrow spaces, where manual operation is even more difficult. Utility Model Content

[0004] The purpose of this invention is to provide a back-side protection device for continuous argon arc welding welds to solve the problems of low alignment accuracy and poor installation adaptability mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a separator plate A, the inner wall of which is provided with a groove A. A protective shell is movably connected to the upper end of the separator plate A. A pressure column is fixedly connected to the upper end of the protective shell. A nozzle is fixedly installed on one side of the pressure column, and a threaded groove is provided on one side of the pressure column. A laser lamp is fixedly installed on the upper end of the protective shell, and a laser port is provided on one side of the laser lamp. The laser lamp is used to determine the specific position of the injected gas for convenient operation. The pressure column pressurizes the incoming gas and ejects argon gas from the nozzle, allowing the back side of the welding surface to contact the argon gas and prevent oxidation.

[0006] A hydraulic rod device is fixedly installed on one side of the partition plate A, and a spring is fixedly installed on one side of the hydraulic rod device. A limit post is movably connected to the inner wall of the spring, and an anti-slip pad is fixedly installed on the other side of the limit post. A partition plate B is fixedly connected to the other side of the hydraulic rod device, and a groove B is provided on the inner wall of the partition plate B. The hydraulic rod device allows the entire device to be fixed inside the pipeline to be operated for convenient operation.

[0007] A partition plate C is fixedly installed on the upper end of the partition plate B. A connecting column is movably connected to the upper end of the partition plate C. A knob is fixedly connected to the upper end of the connecting column. A dual thermopile sensor is fixedly installed on the upper end of the rotatable gimbal. A power supply is fixedly installed on the upper end of the rotatable gimbal. Through the cooperation of the dual thermopile sensor and the rotatable gimbal, the nozzle above its protective shell can be aligned with the direction of operation.

[0008] Compared with the prior art, the beneficial effects of this utility model are:

[0009] 1. This continuous argon arc welding weld back protection device uses a laser lamp to determine the specific location of the sprayed gas for easy operation. The gas is pressurized by a pressurizing column and sprayed out as argon gas from the nozzle, allowing the back of the weld surface to come into contact with the argon gas and not be oxidized.

[0010] 2. The continuous argon arc welding weld back protection device can be fixed inside the pipeline to be operated by a hydraulic rod device for convenient operation;

[0011] 3. The continuous argon arc welding weld back protection device, through the cooperation of dual thermopile sensors and a rotating gimbal, allows the nozzle above the protective shell to be aligned with the direction of operation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0014] Figure 3 This is a side view of the structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ;

[0016] Figure 5 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 4 .

[0017] In the diagram: Divider plate A1, Groove A2, Hydraulic rod device 3, Divider plate B4, Protective shell 5, Rotatable gimbal 6, Laser light 7, Pressurizing column 8, Nozzle 9, Laser port 10, Threaded groove 11, Divider plate C12, Connecting column 13, Knob 14, Groove B15, Limiting column 16, Spring 17, Anti-slip pad 18, Dual hot spot stack sensor 19, Power supply 20. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-5 This utility model provides a technical solution: the inner wall of the separator plate A is provided with a groove A, the upper end of the separator plate A is movably connected to a protective shell, the upper end of the protective shell is fixedly connected to a pressure column, a nozzle is fixedly installed on one side of the pressure column, a threaded groove is provided on one side of the pressure column, a laser lamp is fixedly installed on the upper end of the protective shell, a laser port is provided on one side of the laser lamp, the device is placed in the pipe, the knob is rotated to adjust the hydraulic rod pressure to the limit column pressing against the inner wall of the pipe, the anti-slip pad is attached without looseness, the power is turned on, the laser projection positioning point is to the starting point of the circumferential seam, the position of the device is adjusted so that the positioning point is aligned with the circumferential seam, and the argon gas delivery pipe is connected to the threaded groove.

[0020] A hydraulic rod device is fixedly installed on one side of the separator plate A. A spring is fixedly installed on one side of the hydraulic rod device. A limit post is movably connected to the inner wall of the spring. An anti-slip pad is fixedly installed on the other side of the limit post. A separator plate B is fixedly connected to the other side of the hydraulic rod device. A groove B is provided on the inner wall of separator plate B. A separator plate C is fixedly installed on the upper end of separator plate B. A connecting post is movably connected to the upper end of separator plate C. A knob is fixedly connected to the upper end of the connecting post. A dual-thermop sensor is fixedly installed on the upper end of the rotatable gimbal. A power supply is fixedly installed on the upper end of the rotatable gimbal. When the argon arc welding machine is started, the dual-thermop sensor detects the welding arc heat source and outputs a signal to drive the rotatable gimbal to rotate synchronously with the arc. During the welding process, the nozzle is always directly facing the back of the weld below the arc, and the fan-shaped argon gas flow completely covers the weld area.

[0021] Working principle: Before use, pass the argon gas delivery pipe through grooves A and B and rotate it to connect to the threaded groove of the pressure column to ensure that the nozzle can spray gas. Rotate the knob to retract the hydraulic rod device. Place the device on the inner wall of the pipe to be operated. Turn on the laser lamp and aim the laser beam at the weld seam. Tighten the hydraulic rod device against the inner wall of the pipe by turning the knob. Ensure that the anti-slip pad is in place and not loose. Start the argon arc welding machine to begin working. The dual thermopile sensor detects the heat source of the welding arc and outputs a signal to drive the rotatable gimbal to rotate synchronously with the working arc, allowing the nozzle above to spray argon gas onto the back of the welding area.

[0022] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A protective device for the back side of a continuous argon arc welding weld, comprising a partition plate A (1), characterized in that: The inner wall of the partition plate A (1) is provided with a groove A (2). The upper end of the partition plate A (1) is movably connected to a rotatable gimbal (6). The upper end of the rotatable gimbal (6) is movably connected to a protective shell (5). The upper end of the protective shell (5) is fixedly connected to a pressure column (8). A nozzle (9) is fixedly installed on one side of the pressure column (8). A threaded groove (11) is provided on one side of the pressure column (8). A laser lamp (7) is fixedly installed on the upper end of the protective shell (5). A laser port (10) is provided on one side of the laser lamp (7).

2. The back-side protection device for continuous argon arc welding according to claim 1, characterized in that: A hydraulic rod device (3) is fixedly installed on one side of the partition plate A (1), and a spring (17) is fixedly installed on one side of the hydraulic rod device (3). A limit post (16) is movably connected to the inner wall of the spring (17), and an anti-slip pad (18) is fixedly installed on the other side of the limit post (16).

3. The back-side protection device for continuous argon arc welding according to claim 2, characterized in that: A partition plate B (4) is fixedly connected to the other side of the hydraulic rod device (3), and a groove B (15) is provided on the inner wall of the partition plate B (4).

4. The back-side protection device for continuous argon arc welding according to claim 3, characterized in that: The upper end of the partition plate B (4) is fixedly installed with a partition plate C (12), the upper end of the partition plate C (12) is movably connected with a connecting column (13), and the upper end of the connecting column (13) is fixedly connected with a knob (14).

5. The back-side protection device for continuous argon arc welding according to claim 4, characterized in that: A dual hot spot stack sensor (19) is fixedly installed on the upper end of the rotatable gimbal (6), and a power supply (20) is fixedly installed on the upper end of the rotatable gimbal (6).

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