Welding seam follow-up protection device, welding equipment and metal pipeline

Abstract

The utility model discloses a welding seam follow-up protection device, welding equipment and a metal pipeline. When the weld joint follow-up protection device is used, the device is placed in a to-be-welded pipeline, the opening formed in the box body faces the to-be-welded position of the pipeline, the guide rail is arranged along the to-be-welded position of the pipeline, the adsorption piece has upward suction force, and the idler wheels can be prevented from being separated from the guide rail; the device can be suspended in the to-be-welded pipeline, the driving assembly is started to enable the rolling wheels to roll along the guide rails, the box body filled with gas can carry out gas protection on the to-be-welded positions of the pipeline at all positions, operation is convenient, a large amount of gas is saved, and cost is reduced to a great extent.

Description

Technical Field

[0001] The utility model relates to the field of welding, and particularly relates to a weld follow-up protection device, a welding device and a metal pipeline. Background Art

[0002] At present, gas shielded welding is widely used in various steel structure projects due to its advantages of high welding efficiency, convenient operation and high welding quality. Especially for the tap water steel pipes inside buildings, in order to ensure the health of residents' water use, the weld quality requirements of tap water pipes are very high, so gas shielded welding is often used for tap water steel pipes. In the prior art, generally, equal-length protection gas pipes are arranged inside the steel pipes, and the gas pipes are filled with gas. However, the installation of the protection gas pipes is time-consuming and laborious, and a large amount of gas is required, resulting in high costs. Content of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a weld follow-up protection device, which can solve the problems of time-consuming, laborious and high cost of the existing gas welding equipment.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows: In the first aspect, the utility model provides a weld follow-up protection device, including:

[0005] A bottom plate, the bottom plate is horizontally arranged;

[0006] A box body, the box body is arranged on the bottom plate, the box body is used for containing gas, and an opening is arranged on the box body, and the opening faces the pipeline to be welded;

[0007] A guide rail, the guide rail is arranged on the pipeline to be welded;

[0008] A driving component, the driving component is installed on the bottom plate, the driving component is connected with a roller, and the driving component is used for driving the roller to roll along the guide rail;

[0009] An adsorbing part, the adsorbing part is fixedly connected with the bottom plate, and the adsorbing part is used for preventing the roller from separating from the guide rail.

[0010] As a further improvement of the above technical solution, the driving component includes a motor and a wheel shaft, the motor is installed on the bottom plate, the rotating shaft of the motor is fixedly connected with the wheel shaft, and the roller is fixedly connected with the wheel shaft.

[0011] As a further improvement of the above technical solution, four driving components are provided, the four driving components are arranged in a square, and the four motors are all installed on the bottom plate through fixing seats and are located around the box body.

[0012] As a further improvement of the above technical solution, a shock-absorbing gasket is connected between the fixed seat and the bottom plate.

[0013] As a further improvement of the above technical solution, the adsorbing member includes two magnets which are arranged oppositely, and the box body is located between the two magnets.

[0014] As a further improvement of the above technical solution, the upper surfaces of the two attracting magnets are flush with the opening, and the rollers protrude from the upper surfaces of the magnets.

[0015] As a further improvement of the above technical solution, a vision sensor is further included, and the vision sensor is arranged on the bottom plate.

[0016] In a second aspect, the present utility model provides a welding device, which includes a welding head and the foregoing weld seam follow-up protection device, and the welding head is located above the weld seam follow-up protection device.

[0017] As a further improvement of the above technical solution, a wire feeding nozzle is further included. The wire feeding nozzle is connected to the welding head through a rotating member, and the rotating member is used to adjust the angle of the wire feeding nozzle.

[0018] In a third aspect, the present utility model provides a metal pipe, which includes a pipe body. The side wall of the pipe body has slits, and the side walls of the pipe body on both sides of the slits are welded by the foregoing welding device.

[0019] The beneficial effects of the present utility model are as follows: When the weld seam follow-up protection device provided by the present utility model is in use, the device is placed inside the pipe to be welded, the opening provided on the box body faces the place to be welded on the pipe, the guide rail is arranged along the place to be welded on the pipe, the adsorbing member has an upward suction force, which can prevent the rollers from separating from the guide rail, so that the device can be suspended inside the pipe to be welded. The driving assembly is started to make the rollers roll along the guide rail, and the box body filled with gas can perform gas protection on the places to be welded on the pipe at various positions. The operation is convenient, and a large amount of gas usage is saved, greatly reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present utility model will be further described below with reference to the drawings and embodiments.

[0021] Figure 1 is a schematic structural diagram of the weld seam follow-up protection device provided by a preferred embodiment of the present utility model;

[0022] Figure 2 is a schematic structural diagram of the weld seam follow-up protection device provided by a preferred embodiment of the present utility model without the guide rail;

[0023] Figure 3It is a side view of the weld follow-up protection device provided by the preferred embodiment of the present utility model, excluding the guide rail;

[0024] Figure 4 It is a schematic structural diagram of the welding equipment provided by the preferred embodiment of the present utility model when welding a metal pipe;

[0025] Figure 5 It is a schematic structural diagram of the welding head and the wire feeding nozzle of the welding equipment provided by the preferred embodiment of the present utility model.

[0026] Reference numerals: 1, base plate; 2, box body; 3, guide rail; 4, driving assembly; 5, adsorbing member; 6, vision sensor; 7, welding head; 8, wire feeding nozzle; 9, pipe body;

[0027] 11, fixing seat; 12, shock-absorbing gasket; 21, opening; 41, roller; 42, motor; 43, wheel axle; 51, magnet; 81, rotating member; 91, slit;

[0028] 811, first arm; 812, second arm. Detailed implementation manners

[0029] The concept, specific structure and technical effects of the present utility model will be clearly and completely described below in conjunction with the embodiments and the drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present utility model. In addition, all connection / connection relationships involved in the patent do not simply refer to the direct connection of components, but refer to the more optimal connection structure that can be formed by adding or reducing connection accessories according to the specific implementation situation. For example, fixed connection / fixed installation can be selected from screw connection, bolt connection, pin connection, key connection, bonding, mortise and tenon connection, welding, riveting and other methods as needed. For example, detachable connection can be selected from screw connection, bolt connection, threaded connection, snap connection, mortise and tenon connection, magic tape connection and other methods as needed. The various technical features in the creation of the present utility model can be combined with each other without conflict.

[0030] Please refer to Figures 1 - 3, a preferred embodiment of the present utility model provides a weld seam follow-up protection device, which includes a bottom plate 1, a box body 2, a guide rail 3, a driving assembly 4, and an adsorbing member 5; the bottom plate 1 is horizontally arranged; the box body 2 is arranged on the bottom plate 1, and the box body 2 is used to accommodate gas. An opening 21 is arranged on the box body 2, and the opening 21 faces the pipeline to be welded; the guide rail 3 is arranged on the pipeline to be welded; the driving assembly 4 is installed on the bottom plate 1, and the driving assembly 4 is connected with a roller 41. The driving assembly 4 is used to drive the roller 41 to roll along the guide rail 3; the adsorbing member 5 is fixedly connected with the bottom plate 1, and the adsorbing member 5 can generate an upward suction force to prevent the roller 41 from separating from the guide rail 3. When in use, the device is placed inside the pipeline to be welded, the opening 21 arranged on the box body 2 faces the welding position of the pipeline, the guide rail 3 is arranged along the welding position of the pipeline, and the adsorbing member 5 can prevent the roller 41 from separating from the guide rail 3, so that the device can be suspended inside the pipeline to be welded. Start the driving assembly 4 to make the roller 41 roll along the guide rail 3. The box body 2 filled with gas can perform gas protection on the welding positions of the pipeline at various positions, which is convenient to operate and saves a large amount of gas use, greatly reducing the cost.

[0031] The driving assembly includes a motor 42 and a wheel shaft 43. The motor 42 is installed on the bottom plate 1, the rotating shaft of the motor 42 is fixedly connected with the wheel shaft 43, and the roller 41 is fixedly connected with the wheel shaft 43. When the motor 42 is started, its rotating shaft drives the wheel shaft 43 to rotate, and the wheel shaft 43 drives the roller 41 to rotate, thereby realizing the automatic driving of the roller 41.

[0032] Four driving assemblies 4 are provided, and the four driving assemblies 4 are arranged in a square to increase the driving force of the device and further facilitate the movement of the device along the pipeline to be welded. The four motors 42 are all installed on the bottom plate 1 through fixing seats 11 and are located around the box body 2, which can play a role in limiting the box body 2 and prevent the box body 2 from moving in the horizontal direction.

[0033] A shock-absorbing gasket 12 is connected between the fixing seat 11 and the bottom plate 1. When the motor 42 is started, it will cause vibration to the fixing seat 11. The setting of the shock-absorbing gasket 12 can play a buffering role and weaken the vibration amplitude of the fixing seat 11.

[0034] In this embodiment, the shock-absorbing gasket 12 is a urethane rubber, also known as polyurethane PU elastomer, which has both the rigidity of plastic and the elasticity of rubber, with good strength and small compression deformation.

[0035] The adsorbing member 5 includes two magnets 51, the two magnets 51 are arranged oppositely, the box body 2 is located between the two magnets 51, and both opposite sides of the box body 2 have an upward suction force, which further prevents the roller 41 from separating from the guide rail 3 and can prevent the box body 2 from tilting. Moreover, the magnets 51 do not need to contact the pipeline to be welded, and a sufficient distance between the two can play an adsorbing role.

[0036] The upper surfaces of both magnets 51 are flush with the opening 21. The rollers 41 protrude from the upper surfaces of the magnets 51. The box body 2 and the magnets 51 are both lower than the rollers 41, avoiding friction caused by the box body 2 and the magnets 51 and affecting the rotation of the rollers 41.

[0037] The device further includes a vision sensor 6. The vision sensor 6 is arranged on the bottom plate 1. The vision sensor 6 can monitor the moving position of the rollers 41 and assist in orienting the moving direction of the rollers 41, assisting in playing a role in deviation correction.

[0038] Please refer to Figure 4 , a preferred embodiment of the present utility model further provides a welding device, including a welding head 7 and the weld seam follow-up protection device of the above embodiment. The welding head 7 is located above the weld seam follow-up protection device. The welding head 7 can move along with the weld seam follow-up protection device, and use a laser to weld the pipeline under the protection of the gas in the box body 2.

[0039] The welding device further includes a wire feeding nozzle 8. The wire feeding nozzle 8 is used to convey welding wire. The welding wire is a welding material in the form of a metal wire that serves as a filler metal or simultaneously as a conductive material. The wire feeding nozzle 8 is connected to the welding head 7 through a rotating member 81. The rotating member 81 is used to adjust the angle of the wire feeding nozzle 8 so that the wire feeding nozzle 8 can be aligned with the place to be welded, ensuring that the welding wire is filled to the accurate position.

[0040] Please refer to Figure 5 , in this embodiment, the rotating member 81 includes a first support arm 811 and a second support arm 812 that are rotatably connected at the end. The first support arm 811 is fixedly connected to the welding head 7, and the second support arm 812 is fixedly connected to the wire feeding nozzle 8. Adjusting the included angle between the first support arm 811 and the second support arm 812 can adjust the angle of the wire feeding nozzle 8, which is convenient to use.

[0041] Please refer to Figure 4 , a preferred embodiment of the present utility model further provides a metal pipeline, including a pipe body 9. The side wall of the pipe body 9 has slits 91. The side walls of the pipe body 9 on both sides of the slits 91 are welded by using the welding device of the above embodiment. The pipe body 9 is convenient to weld, and a large amount of gas usage is saved, greatly reducing the cost.

[0042] The above is a specific description of the preferred embodiments of the present utility model, but the creation of the present utility model is not limited to the described embodiments. Those skilled in the art can also make various equivalent deformations or substitutions without departing from the spirit of the present utility model. These equivalent deformations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A weld follow-up protection device, characterized in that: include: A bottom plate, the bottom plate is arranged horizontally; A box body, the box body is arranged on the bottom plate, the box body is used to contain gas, and the box body is provided with an opening, the opening faces the pipe to be welded; A guide rail, wherein the guide rail is arranged on the pipe to be welded; A driving assembly, the driving assembly is mounted on the bottom plate, the driving assembly is connected to a roller, and the driving assembly is used to drive the roller to roll along the guide rail; An adsorption member is fixedly connected to the bottom plate, and is used to prevent the roller from being separated from the guide rail.

2. The weld follow-up protection device according to claim 1 is characterized in that: The driving assembly comprises a motor and a wheel axle. The motor is mounted on the bottom plate. The rotating shaft of the motor is fixedly connected to the wheel axle. The roller is fixedly connected to the wheel axle.

3. The weld follow-up protection device according to claim 2 is characterized in that: There are four drive assemblies, which are arranged in a square shape. The four motors are all mounted on the bottom plate through fixed seats and are located around the box.

4. The weld follow-up protection device according to claim 3 is characterized in that: A shock-absorbing gasket is connected between the fixing seat and the bottom plate.

5. The weld follow-up protection device according to claim 1 is characterized in that: The adsorption member includes two magnets, the two magnets are arranged opposite to each other, and the box is located between the two magnets.

6. The weld follow-up protection device according to claim 5 is characterized in that: The upper surfaces of the two magnets are flush with the opening, and the roller protrudes from the upper surfaces of the magnets.

7. The weld follow-up protection device according to claim 1, characterized in that: It also includes a visual sensor, which is arranged on the bottom plate.

8. A welding device, characterized in that: It comprises a welding head and the weld follower protection device according to any one of claims 1 to 7, wherein the welding head is located above the weld follower protection device.

9. The welding device according to claim 8, characterized in that: It also includes a wire feeding nozzle, which is connected to the welding head through a rotating member, and the rotating member is used to adjust the angle of the wire feeding nozzle.

10. A metal pipe, characterized in that: It comprises a tube body, the side wall of which has a slit, and the slit is welded by the welding equipment according to claim 9.

Images