A welding gas shield configuration protection device

Abstract

The utility model discloses a kind of welding gas shielding layer configuration protection devices, including positioning table, positioning table is used to position square tube and the plugboard vertically inserted with square tube;Positioning table is equipped with a pair of gas support plate that can be moved towards or away from and symmetrically arranged on the both sides of square tube, the upper surface of gas support plate is gas support surface, the height of gas support surface is consistent with the upper surface height when square tube is placed on positioning table;The pair of gas support plate can move towards and closely adhere to the corresponding side of square tube, so that each gas support surface is flush with the upper surface of square tube and connects, jointly form a surrounding weld, by square tube upper surface and two sides gas support surface composition cross-shaped continuous gas covering plane.The utility model forms continuous gas covering plane by movable gas support plate and square tube, prevent gas shielding layer formed by protective gas from side leakage and unable to form closed configuration, avoid welding oxidation, guarantee welding quality.

Description

Technical Field

[0001] This utility model belongs to the field of welding gas protection technology, and in particular relates to a welding gas shielding layer configuration protection device. Background Technology

[0002] like Figure 1 As shown, the connection method between the two workpieces, square tube 1 and insert plate 2, is as follows: insert plate 2 is inserted into the matching insertion hole 10 opened on square tube 1, and then welded and fixed.

[0003] like Figure 1 and Figure 2 As shown, weld 3 is located on the length × width surface (upper surface) of square tube 1. Due to the short width of square tube 1, weld 3 is very close to the side edge of square tube 1 in the area near the length × height surface (side surface). When using... Figure 2 In the conventional welding method shown, the shielding gas 5 lacks sufficient gas support on the side, causing the gas portion of the shielding gas 5 that exceeds the square tube 1 to flow directly downwards. This creates a boundary gap 30 between the shielding gas 5 and the gas impacting the upper surface of the square tube 1, preventing the formation of a closed "gas shielding layer" configuration. External air can then enter the welding area through the boundary gap 30, posing a significant risk of oxidation.

[0004] The above problems urgently need to be addressed. Summary of the Invention

[0005] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides a welding gas shielding layer configuration protection device, which forms a continuous gas coverage plane by a movable gas support plate and a square tube, preventing the gas shielding layer composed of protective gas from leaking sideways and failing to form a closed configuration, avoiding welding oxidation, and ensuring welding quality.

[0006] Technical solution: To achieve the above objectives, the present invention provides a welding gas shielding layer protection device, including a positioning platform, which is used to position a square tube and an insert plate that is perpendicularly inserted into the square tube, so that the weld between the two is located at the top.

[0007] The positioning platform is provided with a pair of gas support plates that can move towards or away from each other and are symmetrically arranged on both sides of the square tube. The upper surface of the gas support plate is a gas support surface, and the height of the gas support surface is the same as the height of the upper surface of the square tube when it is placed on the positioning platform.

[0008] The pair of gas support plates can move towards each other and fit tightly against the corresponding sides of the square tube, so that each gas support surface is flush with the upper surface of the square tube, together forming a cross-shaped continuous gas covering plane that surrounds the weld, consisting of the upper surface of the square tube and the gas support surfaces on both sides.

[0009] Furthermore, a positioning groove is provided on the positioning platform, and the groove wall of the positioning groove is provided with a tongue that can slide laterally; the tongue is inserted into the side end groove of the insert plate to position the insert plate.

[0010] Furthermore, a linkage mechanism is connected between the tongue and the gas support plate, and the gas support plate drives the tongue to slide when it moves through the linkage mechanism.

[0011] Furthermore, the linkage mechanism includes a connecting plate and a spring;

[0012] The connecting plate is detachably connected to the gas support plate by fasteners;

[0013] The tongue is elastically connected to the connecting plate via the spring.

[0014] Furthermore, it also includes a motion drive unit disposed on the positioning platform, the motion drive unit being used to drive the gas support plate to move.

[0015] Furthermore, the gas support plate is provided with a cooling chamber, and a cooling medium is introduced into the cooling chamber to cool the gas support plate.

[0016] Furthermore, the cooling chamber is located near the end of the gas support plate that is attached to the square tube.

[0017] Furthermore, the outer side of the gas support plate is provided with a cooling medium inlet and a cooling medium outlet, and the inside of the gas support plate is provided with a medium flow channel. The cooling medium inlet, the medium flow channel, the cooling chamber, and the cooling medium outlet are connected in sequence.

[0018] Beneficial effects: This utility model forms a continuous gas coverage plane by means of a movable gas support plate and a square tube, which prevents the gas shielding layer composed of protective gas from leaking and thus failing to form a closed structure. It also achieves uniform diffusion of the welding protective gas flow, avoids gas escape, significantly improves the inert gas coverage rate of the weld area, reduces oxidation defects, and ensures welding quality. Attached Figure Description

[0019] Figure 1 This is a structural diagram of the square tube and the insert plate;

[0020] Figure 2 This is a schematic diagram showing the state of welding existing square tubes and insert plates;

[0021] Figure 3 A schematic diagram of the cross-sectional structure of a welding gas shielding protection device;

[0022] Figure 4 This is a structural schematic diagram of a welding gas shield protection device in three-dimensional and partially disassembled states. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] like Figure 1 As shown, the connection method between the two workpieces, square tube 1 and insert plate 2, is as follows: insert plate 2 is inserted into the matching insertion hole 10 opened on square tube 1, and then welded and fixed.

[0025] like Figure 1 and Figure 2 As shown, weld 3 is located on the length × width surface (upper surface) of square tube 1. Due to the short width of square tube 1, weld 3 is very close to the side edge of square tube 1 in the area near the length × height surface (side surface). When using... Figure 2 In the conventional welding method shown, the shielding gas 5 lacks sufficient gas support on the side, causing the gas portion of the shielding gas 5 that exceeds the square tube 1 to flow directly downwards. This creates a boundary gap 30 between the shielding gas 5 and the gas impacting the upper surface of the square tube 1, preventing the formation of a closed "gas shielding layer" configuration. External air can then enter the welding area through the boundary gap 30, posing a significant risk of oxidation.

[0026] To solve the above problems, such as Figure 3 and Figure 4 As shown, this utility model proposes a welding gas shielding layer protection device, including a positioning platform 6. The positioning platform 6 is used to position a square tube 1 and an insert plate 2 that is perpendicularly inserted into the square tube 1, so that the weld 3 between the two is located above. The positioning platform 6 is provided with a pair of gas support plates 8 that can move towards each other or away from each other and are symmetrically arranged on both sides of the square tube 1. The upper surface of the gas support plate 8 is a gas support surface 80, and the height of the gas support surface 80 is consistent with the height of the upper surface of the square tube 1 when it is placed on the positioning platform 6. The pair of gas support plates 8 can move towards each other and fit tightly against the corresponding side of the square tube 1, so that each gas support surface 80 is flush with the upper surface of the square tube 1, together forming a cross-shaped continuous gas covering plane that surrounds the weld 3 and is composed of the upper surface of the square tube 1 and the gas support surfaces 80 on both sides. This invention uses a movable gas support plate and a square tube to form a continuous gas coverage plane, preventing the gas shield layer composed of protective gas from leaking and failing to form a closed structure. It also achieves uniform diffusion of the welding protective gas flow, avoids gas escape, significantly improves the inert gas coverage rate in the weld area, reduces oxidation defects, and ensures welding quality.

[0027] The positioning platform 6 is provided with a positioning groove 60, and the groove wall of the positioning groove 60 is provided with a horizontally sliding tongue 12; the tongue 12 is inserted into the side end groove 20 of the insert plate 2 to position the insert plate 2, ensuring that the vertical insertion position of the insert plate 2 and the square tube 1 are consistent, and avoiding welding misalignment.

[0028] A linkage mechanism connects the tongue 12 and the gas support plate 8, allowing the gas support plate 8 to slide along the tongue 12 as it moves. This invention also includes a movement drive unit 7 mounted on the positioning stage 6. The movement drive unit 7 drives the gas support plate 8 to move; preferably, it is a servo linear slide module. The linkage mechanism synchronizes the movement of the gas support plate 8 with the sliding of the tongue 12, all driven by the same servo linear slide module, improving efficiency while reducing structural complexity and saving costs.

[0029] The advantages of using a servo linear slide module are: automated control of the movement of the gas support plate 8, reducing the difficulty of manual operation, ensuring uniform bonding force, and improving the stability of the device.

[0030] More specifically, the linkage mechanism includes a connecting plate 9 and a spring 11; the connecting plate 9 is detachably connected to the gas support plate 8 by a fastener 13, which facilitates maintenance or replacement of the gas support plate 8, and the fastener 13 is an internal hex bolt; the tongue 12 is elastically connected to the connecting plate 9 by the spring 11.

[0031] Since the gas support plate 8 is subject to high temperatures for a long time, which will affect its lifespan, and relying solely on the aforementioned removable maintenance or replacement is too costly, in this utility model, the gas support plate 8 is provided with a cooling chamber 8c. By introducing a cooling medium into the cooling chamber 8c to cool the gas support plate 8, it can suppress the conduction of welding heat to the gas support plate 8 to a certain extent, prevent high-temperature deformation, and extend its lifespan.

[0032] The cooling chamber 8c is located near the end of the gas support plate 8 that is attached to the square tube 1, which can specifically cool the area with concentrated heat and optimize heat dissipation efficiency.

[0033] The outer surface of the gas support plate 8 is provided with a cooling medium inlet 8a and a cooling medium outlet 8d. The gas support plate 8 has a medium flow channel 8b inside. The cooling medium inlet 8a, the medium flow channel 8b, the cooling chamber 8c, and the cooling medium outlet 8d are connected in sequence. The cooling medium can be either cold air or cooling water. For convenience and cost savings, cold air is preferred.

[0034] This invention forms a cross-shaped continuous covering plane by connecting the gas support plate with the upper surface of the square tube, avoiding the risk of protective gas leakage, stabilizing and maintaining the closed and complete configuration of the "gas shielding layer", eliminating the boundary gap 30, and significantly improving the sealing and diffusion uniformity of the protective airflow, eliminating weld oxidation defects; the linkage mechanism moves the gas support plate 8 and slides the tongue 12 synchronously, improving efficiency while reducing structural complexity, and the servo slide ensures that the gas support plate 8 is stably attached, improving the degree of automation; the cooling chamber 8c is circulated with a medium to suppress heat conduction, prevent the gas support plate 8 from deforming and extend its service life.

[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A welding gas shielding layer configuration protection device, comprising a positioning platform (6), the positioning platform (6) being used to position a square tube (1) and an insert plate (2) perpendicularly inserted into the square tube (1), such that the weld (3) between the two is located above; characterized in that The positioning platform (6) is provided with a pair of gas support plates (8) that can move towards each other or away from each other and are symmetrically arranged on both sides of the square tube (1). The upper surface of the gas support plate (8) is a gas support surface (80), and the height of the gas support surface (80) is the same as the height of the upper surface of the square tube (1) when it is placed on the positioning platform (6). The pair of gas support plates (8) can move towards each other and fit tightly against the corresponding side of the square tube (1), so that each gas support surface (80) is flush with the upper surface of the square tube (1) and together they form a cross-shaped continuous gas covering plane that surrounds the weld (3) and is composed of the upper surface of the square tube (1) and the gas support surfaces (80) on both sides.

2. A welding gas shield configuration protection device according to claim 1, wherein: The positioning platform (6) is provided with a positioning groove (60), and the groove wall of the positioning groove (60) is provided with a tongue (12) that can slide laterally; the tongue (12) is inserted into the side end groove (20) of the insert plate (2) to position the insert plate (2).

3. A welding gas shield configuration protection device according to claim 2, wherein: A linkage mechanism is connected between the tongue (12) and the gas support plate (8). When the gas support plate (8) moves, it drives the tongue (12) to slide.

4. A welding gas shield configuration protection device according to claim 3, wherein: The linkage mechanism includes a connecting plate (9) and a spring (11); The connecting plate (9) is detachably connected to the gas support plate (8) by fasteners (13); The tongue (12) is elastically connected to the connecting plate (9) via the spring (11).

5. A welding gas shield configuration protection device according to claim 3 or 4, characterised in that: It also includes a moving drive unit (7) disposed on the positioning platform (6), the moving drive unit (7) being used to drive the gas support plate (8) to move.

6. A welding gas shield configuration protection device according to claim 1, wherein: The gas support plate (8) is provided with a cooling chamber (8c), and the gas support plate (8) is cooled by introducing a cooling medium into the cooling chamber (8c).

7. A welding gas shielding layer protection device according to claim 6, characterized in that: The cooling chamber (8c) is located near the gas support plate (8) at one end of the square tube (1).

8. A welding gas shielding layer protection device according to claim 6 or 7, characterized in that: The outer side of the gas support plate (8) is provided with a cooling medium inlet (8a) and a cooling medium outlet (8d), and the inside of the gas support plate (8) is provided with a medium flow channel (8b). The cooling medium inlet (8a), the medium flow channel (8b), the cooling chamber (8c), and the cooling medium outlet (8d) are connected in sequence.

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