CN218109644U

CN218109644U - Welding gas protection device with circle expanding function

Info

Publication number: CN218109644U
Application number: CN202221118075.6U
Authority: CN
Inventors: 熊芳芳; 陈章磊; 尤振宇
Original assignee: Nantong Institute of Technology
Current assignee: Nantong Institute of Technology
Priority date: 2022-05-10
Filing date: 2022-05-10
Publication date: 2022-12-23
Anticipated expiration: 2032-05-10

Abstract

The utility model discloses a welding gas protection device of circle function is propped in area belongs to thin wall circular tank body welding technical field, including propping circle subassembly and gas protection subassembly, prop the circle subassembly and include by the circle channel-section steel that props open, prop the back the edge of circle channel-section steel is contradicted at the container inner wall just prop the outer wall of circle channel-section steel with form an inclosed gas circulation passageway between the container inner wall, the gas circulation passageway with gas protection subassembly intercommunication so that inert gas lets in the gas circulation passageway. The utility model discloses utilize to prop circle subassembly and prop up thin wall container to be connected circle subassembly and gas protection subassembly as an organic whole, it is more convenient during the operation, and can fully realize the gas protection, the metal high temperature oxidation that melts when avoiding welding.

Description

Welding gas protection device with circle supporting function

Technical Field

The utility model belongs to the technical field of the circular jar of body welding of thin wall, concretely relates to area props welding gas protection device of circle function.

Background

When the thin-wall circular tank body is welded by using mechanical plasma arc welding, a circle supporting device is required to be used for supporting the circle due to insufficient rigidity of the tank body, the roundness of the tank body is ensured, and the welding can be carried out only by using the circle supporting device.

The existing circle supporting device shown in fig. 5 generally comprises two gas filling body protection grooves supported in a shape like a Chinese character 'mi', the Chinese character 'mi' supports are respectively placed in the circle supporting device during installation, a screw rod on each support arm in the shape like a Chinese character 'mi' is manually rotated to outwards support the thin-wall cylinder, then a gas protection cover is installed between the two supports, the screw rod on the support arm is rotated to push the welding position of the top of the tank body, and protection gas is introduced through a gas pipe to achieve the effect of gas protection. The disadvantages of this device are: the circle supporting device and the gas protection device are split, the device is heavy, the operation is inconvenient, the installation efficiency is low, in addition, once the circle supporting roundness is insufficient, the gas protection groove is easily clamped by the barrel, the back welding gun cannot be synchronously advanced along with the back gas protection, and the back gas protection is invalid.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a welding gas protection device of circle function is propped in area to the rounding device and the gas protection device of solution adopt split type, and the device is heavy, and the operation is inconvenient, and the installation effectiveness is low, in case the rounding circularity is not enough in addition, and the gas protection groove is easily blocked by the barrel, can't follow back welder and go forward in step, back gas protection inefficacy problem.

The utility model provides a welding gas protection device of circle function is propped in area, includes circle subassembly and gas protection subassembly, the circle subassembly includes by the circle channel-section steel that props that can strut, struts the back the edge conflict of circle channel-section steel just at the container inner wall the outer wall of circle channel-section steel with form an inclosed gas flow channel between the container inner wall, the gas flow channel with gas protection subassembly intercommunication is in so that inert gas lets in the gas flow channel.

Preferably, the circle supporting assembly comprises a flexible plastic piano cover, a middle supporting rod, a hydraulic cylinder and a herringbone supporting frame, an opening is formed in the bottom of the circle supporting channel steel, the flexible plastic piano cover is fixedly connected between two ends of the opening, the middle supporting rod is arranged in the circle supporting channel steel, the upper end of the middle supporting rod abuts against the inner top of the circle supporting channel steel, the hydraulic cylinder is fixedly connected to one side of the bottom of the middle supporting rod, the herringbone supporting frame is slidably connected to the bottom of the middle supporting rod, the hydraulic cylinder drives the herringbone supporting frame to move downwards so that two sides of the herringbone supporting frame abut against two sides of the opening, a herringbone pressure transmission frame is rotatably connected to the other side of the bottom of the middle supporting rod, the bottom of the herringbone pressure transmission frame is fixedly connected with two sides of the opening of the circle supporting channel steel, and the herringbone supporting frame drives two sides of the bottom of the herringbone pressure transmission frame to expand outwards while moving downwards so that the opening and the flexible plastic piano cover are spread.

Preferably, the herringbone support frame comprises a first moving frame and a second moving frame, the first moving frame and the second moving frame are symmetrically arranged on two sides of the middle support rod in a sliding mode and are abutted against two sides of the opening of the circular supporting channel steel with the bottom of the first moving frame and the bottom of the second moving frame, an extension plate is fixedly connected between the middle parts of one side of the first moving frame and the second moving frame, and the movable end of the hydraulic cylinder is fixedly connected with the extension plate.

Preferably, the herringbone pressure conduction frame comprises a first rotating frame and a second rotating frame, a support frame is fixedly connected to the other side of the middle support rod, the first rotating frame and the second rotating frame are symmetrically and rotatably connected to the two sides of the support frame, the surfaces of the first rotating frame and the second rotating frame are symmetrically provided with L-shaped rotating grooves, limit rods which are in sliding connection with the L-shaped rotating grooves are arranged on the first moving frame and the second moving frame, connecting pipes which are located on the two sides of the opening are symmetrically and fixedly connected to the bottoms of the first rotating frame and the second rotating frame, and the connecting pipes are communicated with a gas circulation channel on the surface of the circular supporting channel steel.

Preferably, the gas protection component comprises a gas inlet pipe and a gas outlet pipe, and the connecting pipes on two sides are respectively communicated with the gas inlet pipe and the gas outlet pipe.

The utility model discloses a have following advantage:

the utility model discloses a circle supporting assembly and the gas protection subassembly of integral type, the circle supporting channel-section steel of circle supporting assembly are by middle hydraulic cylinder toward exerting pressure outward, make circle supporting channel-section steel prop the circle with thin wall container, prop simultaneously and form a gas circulation passageway between circle supporting channel-section steel and the thin wall container, and the gas protection subassembly passes through an intake pipe, and an outlet duct forms the inert gas air current. Intake pipe, outlet duct all make inert gas flow to the gas flow passageway with gas flow passageway intercommunication in, just can play the effect of gas protection in the welded, the molten metal high temperature oxidation when avoiding welding, the utility model discloses can realize simultaneously that the function of rounding and gas protection, the device is light, and installation and the whole mechanized completion of rounding, gas protection can cover whole circumference simultaneously, can effectively avoid the unable protection inefficacy problem that leads to the fact that advances in step along with back welder of following of local gas safety cover.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic front view of a portion of the structure shown in fig. 1.

FIG. 3 is a schematic view of a backside partial structure of the structure shown in FIG. 1;

FIG. 4 is a schematic view of the structure of the utility model during operation

Fig. 5 is a schematic structural view of a conventional rounding device.

The labels in the figures are:

1. a rounding assembly; 10. supporting round channel steel; 11. an opening; 12. a flexible plastic piano cover; 13. a hydraulic cylinder; 14. a middle support bar; 15. a gas flow channel;

2. a herringbone support frame; 20. a first movable frame; 21. a second moving frame; 22. an extension plate;

3. a herringbone pressure transmission frame; 30. a first rotating frame; 31. a second rotating frame; 32. a support frame; 33. an L-shaped rotating groove; 34. a limiting rod; 35. a connecting pipe;

4. a gas-protected component; 40. an air inlet pipe; 41. an air outlet pipe;

5. the existing rounding device.

Detailed Description

The following detailed description of the embodiments of the present invention will be provided to help those skilled in the art to more fully, accurately and deeply understand the concept and technical solutions of the present invention, through the description of the embodiments with reference to the accompanying drawings.

As shown in fig. 1-4, the utility model provides a welding gas protection device of circle function is propped in area, including propping circle subassembly 1 and gas protection subassembly 4, prop circle subassembly 1 and include by the circle channel-section steel 10 that props open, prop the back of opening the edge of circle channel-section steel 10 is contradicted just at the container inner wall prop the outer wall of circle channel-section steel 10 with form an inclosed gas flow channel 15 between the container inner wall, gas flow channel 15 with gas protection subassembly 4 intercommunication is so that inert gas lets in the gas flow channel 15.

The circle supporting component 1 comprises a flexible plastic piano cover 12, a middle supporting rod 14, a hydraulic cylinder 13 and a herringbone supporting frame 2, an opening 11 is formed in the bottom of a circle supporting channel 10, the flexible plastic piano cover 12 is fixedly connected between two ends of the opening 11, the middle supporting rod 14 is arranged inside the circle supporting channel 10, the upper end of the middle supporting rod 14 abuts against the inner top of the circle supporting channel 10, the hydraulic cylinder 13 is fixedly connected to one side of the bottom of the middle supporting rod 14, the herringbone supporting frame 2 is slidably connected to the bottom of the middle supporting rod 14, the hydraulic cylinder 13 drives the herringbone supporting frame 2 to move downwards so that two sides of the herringbone supporting frame 2 abut against two sides of the opening 11, the herringbone pressure transmission frame 3 is rotatably connected to the other side of the bottom of the middle supporting rod 14, the bottom of the herringbone pressure transmission frame 3 is fixedly connected with two sides of the opening 11 of the circle supporting channel 10, and the herringbone supporting frame 2 drives two sides of the bottom of the herringbone pressure transmission frame 3 to expand outwards when moving downwards so that the opening 11 and the flexible plastic piano cover 12 are spread. The herringbone support frame 2 comprises a first moving frame 20 and a second moving frame 21, the first moving frame 20 and the second moving frame 21 are symmetrically arranged on two sides of the middle support rod 14 in a sliding mode and tightly abut against the bottoms of the first moving frame 20 and the second moving frame 21 at two sides of the opening 11 of the circular support channel steel 10, an extension plate 22 is fixedly connected between the middle portions of one side of the first moving frame 20 and the second moving frame 21, and the movable end of the hydraulic cylinder 13 is fixedly connected with the extension plate 22. The herringbone pressure transmission frame 3 comprises a first rotating frame 30 and a second rotating frame 31, a support frame 32 is fixedly connected to the other side of the middle support rod 14, the first rotating frame 30 and the second rotating frame 31 are symmetrically and rotatably connected to the two sides of the support frame 32, L-shaped rotating grooves 33 are symmetrically formed in the surfaces of the first rotating frame 30 and the second rotating frame 31, limiting rods 34 which are slidably connected with the L-shaped rotating grooves 33 are arranged on the first moving frame 20 and the second moving frame 21, connecting pipes 35 which are located on the two sides of the opening 11 are symmetrically and fixedly connected to the bottoms of the first rotating frame 30 and the second rotating frame 31, and the connecting pipes 35 are communicated with the gas circulation channel 15 on the surface of the round supporting channel steel 10.

The expansion end of the hydraulic cylinder 13 moves downwards to drive the extension plate 22 to move downwards, so that the first movable frame 20 and the second movable frame 21 are driven to move downwards, the end parts of the first movable frame 20 and the second movable frame 21 can be tightly abutted against the two sides of the opening 11 of the circular supporting channel steel 10, and the circular supporting channel steel 10 can be more stably fixed in the thin-wall container. A man-shaped structure is formed between the first rotating frame 30 and the second rotating frame 31, the first rotating frame 30 and the second rotating frame 31 are rotatably connected with the middle support rod 14 by means of a support frame 32, a limiting rod 34 which is slidably connected with an L-shaped rotating groove 33 on the first rotating frame 30 and the second rotating frame 31 is arranged on the first moving frame 20 and the second moving frame 21, the first rotating frame 30 and the second rotating frame 31 are also L-shaped structures, the L-shaped rotating groove 33 is arranged at the top of the first rotating frame 30 and the second rotating frame 31, the included angle of the L-shaped rotating groove 33 is larger than 90 degrees and smaller than 180 degrees, and when the first moving frame 20 and the second moving frame 21 move downwards, the limiting rod 34 is inevitably driven to move along the L-shaped rotating groove 33, when the limiting rod 34 moves downwards, the limiting rod moves downwards along the vertical part of the L-shaped rotating groove 33, the first rotating frame 30 and the second rotating frame 31 are opened towards two sides, the bottoms of the first rotating frame 30 and the second rotating frame 31 are fixedly connected with the circle supporting channel steel 10 through the connecting pipe 35, the opening force of the first rotating frame 30 and the second rotating frame 31 can drive the two opened sides of the circle supporting channel steel 10 to be unfolded outwards, the opening 11 is opened, the circle supporting channel steel 10 can support a thin-wall container, the cross section of the circle supporting channel steel 10 is of an Contraband type structure, and when the outer wall of the circle supporting channel steel 10 is tightly attached to the inner wall of the thin-wall container, a gas circulation channel 15 is formed between the outer edge of the circle supporting channel steel and the thin-wall container.

The gas protection component 4 comprises a gas inlet pipe 40 and a gas outlet pipe 41, and the connecting pipes 35 on the two sides are respectively communicated with the gas inlet pipe 40 and the gas outlet pipe 41.

Intake pipe 40 communicates external gas storage device, and inert gas lets in by intake pipe 40 and connecting pipe 35 in the gas flow channel 15 on support circular channel-section steel 10 surface, inert gas fills between support circular channel-section steel 10 and container like this, and when the container surface welds, its back and inert gas fully contact just can play the effect of gas protection in the welded, the melting metal high temperature oxidation when avoiding welding.

The working principle is as follows: firstly, the circle supporting channel steel 10 is placed in the thin-wall container and is righted, the top of the circle supporting channel steel 10 is tightly attached to the inner top of the thin-wall container, then the movable end of the hydraulic cylinder 13 moves downwards to drive the extension plate 22 to move downwards, and further the movable frame I20 and the movable frame II 21 are driven to move downwards, so that the end parts of the movable frame I20 and the movable frame II 21 can be tightly abutted to two sides of the opening 11 of the circle supporting channel steel 10, and the circle supporting channel steel 10 can be more stably fixed to the inner bottom of the thin-wall container. A man-shaped structure is formed between the first rotating frame 30 and the second rotating frame 31, the first rotating frame 30 and the second rotating frame 31 are rotatably connected with the middle support rod 14 by means of a support frame 32, a limiting rod 34 which is slidably connected with an L-shaped rotating groove 33 on the first rotating frame 30 and the second rotating frame 31 is arranged on the first moving frame 20 and the second moving frame 21, the first rotating frame 30 and the second rotating frame 31 are also in an L-shaped structure, the L-shaped rotating groove 33 is arranged at the top of the first rotating frame 30 and the second rotating frame 31, the included angle of the L-shaped rotating groove 33 is larger than 90 degrees and smaller than 180 degrees, when the first moving frame 20 and the second moving frame 21 move downwards, the limiting rod 34 is inevitably driven to move along the L-shaped rotating groove 33, when the limiting rod 34 moves downwards, the limiting rod moves downwards along the vertical part of the L-shaped rotating groove 33, so that the first rotating frame 30 and the second rotating frame 31 are opened towards two sides, because the bottoms of the first rotating frame 30 and the second rotating frame 31 are fixedly connected with the supporting round channel steel 10 by means of the connecting pipe 35, the opening force of the first rotating frame 30 and the second rotating frame 31 can drive the two sides of the opening of the supporting round channel steel 10 to be unfolded outwards, the opening 11 is opened, and then the supporting round channel steel 10 can support a thin-wall container, a gas circulation channel 15 is formed between the outer edge of the supporting round channel steel 10 and the thin-wall container, the gas inlet pipe 40 is communicated with an external gas storage device, inert gas is introduced into the gas circulation channel 15 on the surface of the supporting round channel steel 10 by means of the gas inlet pipe 40 and the connecting pipe 35, and is filled between the supporting round channel steel 10 and the container, when the surface of the container is welded, the back of the container is in full contact with the inert gas, the gas protection effect can be achieved when the welding, and the high-temperature oxidation of molten metal can be avoided when the welding.

The present invention has been described in detail with reference to the accompanying drawings, and it is apparent that the present invention is not limited by the above embodiments, and various insubstantial modifications of the inventive concept and technical solutions of the present invention or direct application of the inventive concept and technical solutions to other applications without modification are within the scope of the present invention.

Claims

1. The utility model provides a welding gas protection device of circle function is propped in area which characterized in that: including rounding subassembly (1) and gas protection subassembly (4), rounding subassembly (1) includes by the rounding channel-section steel (10) that can strut, struts the back the edge conflict of rounding channel-section steel (10) is just at the container inner wall the outer wall of rounding channel-section steel (10) with form an inclosed gas flow passageway (15) between the container inner wall, gas flow passageway (15) with gas protection subassembly (4) intercommunication is in order to make inert gas let in gas flow passageway (15).

2. The welding gas protection device with the rounding function as claimed in claim 1, characterized in that: the round supporting assembly (1) comprises a flexible plastic piano cover (12), a middle supporting rod (14), a hydraulic cylinder (13) and a herringbone supporting frame (2), an opening (11) is formed in the bottom of a round supporting channel (10), the flexible plastic piano cover (12) is fixedly connected between two ends of the opening (11), the middle supporting rod (14) is arranged inside the round supporting channel (10), the upper end of the middle supporting rod (14) is tightly abutted to the inner top of the round supporting channel (10), the hydraulic cylinder (13) is fixedly connected to one side of the bottom of the middle supporting rod (14), the bottom of the middle supporting rod (14) is slidably connected with the herringbone supporting frame (2), the hydraulic cylinder (13) drives the herringbone supporting frame (2) to move downwards to enable two sides of the herringbone supporting channel to be tightly abutted to two sides of the opening (11), the other side of the bottom of the middle supporting rod (14) is rotatably connected with the herringbone pressure conducting frame (3), the bottom of the herringbone pressure conducting frame (3) is fixedly connected with two sides of the opening (11), and the herringbone pressure conducting frame (3) is driven to move downwards to enable the opening of the flexible plastic piano cover (12) and the herringbone supporting frame (2) to be unfolded to drive the plastic piano to be unfolded towards the two sides of the herringbone supporting channel (11).

3. The welding gas protection device with the rounding function as claimed in claim 2, characterized in that: the herringbone support frame (2) comprises a first moving frame (20) and a second moving frame (21), the first moving frame (20) and the second moving frame (21) are symmetrically arranged on two sides of the middle support rod (14) in a sliding mode and abut against two sides of an opening (11) of the circular supporting channel steel (10) with the bottoms of the first moving frame (20) and the second moving frame (21), an extension plate (22) is fixedly connected between the middle portions of one side of the first moving frame (20) and the second moving frame (21), and the movable end of the hydraulic cylinder (13) is fixedly connected with the extension plate (22).

4. The welding gas shield assembly with a rounding function of claim 3, further comprising: the herringbone pressure transmission frame (3) comprises a first rotating frame (30) and a second rotating frame (31), a support frame (32) is fixedly connected to the other side of the middle support rod (14), the first rotating frame (30) and the second rotating frame (31) are symmetrically and rotatably connected to the two sides of the support frame (32), L-shaped rotating grooves (33) are symmetrically formed in the surfaces of the first rotating frame (30) and the second rotating frame (31), limiting rods (34) which are slidably connected with the L-shaped rotating grooves (33) are arranged on the first moving frame (20) and the second moving frame (21), connecting pipes (35) located on the two sides of the opening (11) are symmetrically and fixedly connected to the bottoms of the first rotating frame (30) and the second rotating frame (31), and the connecting pipes (35) are communicated with a gas circulation channel (15) on the surface of the round supporting channel steel (10).

5. The welding gas shield assembly with a rounding function of claim 4, further comprising: the gas protection assembly (4) comprises a gas inlet pipe (40) and a gas outlet pipe (41), and the connecting pipes (35) on the two sides are communicated with the gas inlet pipe (40) and the gas outlet pipe (41) respectively.