Titanium alloy mig welding gas shield assist device

Abstract

This utility model relates to the field of titanium alloy welding and discloses an auxiliary device for gas protection in titanium alloy MIG welding. The device includes a cover, with auxiliary plates on both the left and right sides of the bottom surface of the cover, rubber components on both sides of the cover, a mounting ring fixedly connected to the top of the cover, and a gas supply assembly on the upper part of the cover. Multiple ball bearings are rotatably connected to the bottom of the auxiliary plates, and a mounting groove is formed in the middle of the auxiliary plates. A mounting plate is fixedly connected to the bottom surface of the cover, and the mounting plate is movably connected to the mounting groove. Multiple bolts are threadedly connected between the mounting plate and the mounting groove. In this utility model, the interaction between the cover, auxiliary plates, ball bearings, and other components effectively reduces friction during cover movement. Furthermore, the interaction between the mounting plate, mounting opening, and bolts makes the auxiliary plate easier to replace and more practical.

Description

Technical Field

[0001] This utility model relates to the field of titanium alloy welding, and in particular to an auxiliary device for gas protection in titanium alloy MIG welding. Background Technology

[0002] Titanium alloy welding is a highly technical process. Due to the special properties of titanium alloys, such as low density, high strength and corrosion resistance, the welding process must be very careful. Titanium alloy MIG welding, or gas metal arc welding, is faster than other welding methods such as TIG welding and is suitable for large-scale production.

[0003] A search revealed Chinese Patent Publication No. CN218503550U, which discloses a gas shielding cover for titanium alloy welding. The cover includes a porous U-shaped copper tube, a housing, and a clamp. The porous U-shaped copper tube is installed inside the housing for filling it with argon gas. The housing has an open bottom to cover the weld seam. The clamp is fixed to the end of the housing for connection to an argon arc welding torch. This invention is used for welding TC4 titanium alloy plate assemblies of different specifications. It addresses welding defects such as embrittlement of TC4 titanium alloy weld joints, weld cracking tendency, and welding bubbles, improving the first-pass yield rate of welded products, achieving a 100% weld pass rate for titanium alloy products, and effectively increasing the welding efficiency of TC4 titanium alloy plates, thereby reducing the manufacturing cost of titanium alloy workpieces. This device has broad application value.

[0004] The aforementioned device, although it can cover the weld seam with a box and fill the box with argon gas to protect the weld, needs to move along with the welding gun during the welding process. Its flat bottom surface comes into contact with the titanium alloy to be welded, resulting in high friction. Moreover, its bottom surface is prone to wear after prolonged use. If replacement is required, the entire device must be replaced, which is not practical. Therefore, a titanium alloy MIG welding gas protection auxiliary device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a gas protection auxiliary device for titanium alloy MIG welding, which aims to improve the existing technology where the flat bottom surface of the box contacts the titanium alloy to be welded, resulting in high friction and easy wear on the bottom surface after prolonged use. If replacement is required, the entire device must be replaced, which is not practical.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a gas protection auxiliary device for titanium alloy MIG welding, comprising a cover, auxiliary plates provided on both the left and right sides of the bottom surface of the cover, rubber parts provided on both the left and right sides of the cover, a mounting ring fixedly connected to the top of the cover, a gas supply component provided on the upper part of the cover, multiple ball bearings rotatably connected to the bottom of the auxiliary plates, an installation groove provided in the middle of the auxiliary plates, a mounting plate fixedly connected to the bottom surface of the cover, the mounting plate being movably connected to the mounting groove, and multiple bolts being threadedly connected between the mounting plate and the mounting groove.

[0007] As a further description of the above technical solution:

[0008] The left and right sides of the cover are fixedly connected to a No. 1 fixing frame.

[0009] As a further description of the above technical solution:

[0010] Each of the two auxiliary plates is fixedly connected to a second fixing frame on the side that is far apart from each other, and the first fixing frame and the second fixing frame are arranged symmetrically.

[0011] As a further description of the above technical solution:

[0012] A dispersion plate is fixedly connected to the lower part of the inner wall of the cover, and the dispersion plate has fine holes.

[0013] As a further description of the above technical solution:

[0014] The rubber component includes a rubber sheet, and a limiting strip is fixedly connected to the upper part of the rubber sheet. The limiting strip is movably connected to the first fixing frame and the second fixing frame.

[0015] As a further description of the above technical solution:

[0016] The air supply assembly includes an air supply ring, which is fixedly connected to the cover. An air inlet pipe is fixedly connected to the rear of the air supply ring, and the air inlet pipe passes through and is fixedly connected to the cover.

[0017] As a further description of the above technical solution:

[0018] The bottom of the air supply ring has multiple air supply ports.

[0019] This utility model has the following beneficial effects:

[0020] 1. In this utility model, the friction force when the cover moves can be effectively reduced by setting the cooperation between the cover, auxiliary plate, ball bearings and other components. At the same time, the auxiliary plate is easier to replace and more practical by setting the cooperation between the mounting plate, mounting port, bolts and other components.

[0021] 2. In this utility model, by setting the interaction between the rubber parts, the cover, and the auxiliary plate, the device can better protect against gas. At the same time, by setting the interaction between the limiting strip and the first and second fixing frames, the rubber parts are easier to replace. The limiting strip can also seal the gaps between the first and second fixing frames, the cover, and the auxiliary plate, so as to better ensure the protective performance of the device and make it more practical. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an auxiliary device for gas protection in titanium alloy MIG welding proposed in this utility model.

[0023] Figure 2 This is a schematic diagram of the overall lower three-dimensional structure of an auxiliary device for gas protection in titanium alloy MIG welding proposed in this utility model.

[0024] Figure 3 This is a three-dimensional structural diagram of a gas protection auxiliary device for titanium alloy MIG welding proposed in this utility model.

[0025] Figure 4 This is a three-dimensional cross-sectional structural diagram of the cover and mounting ring of the auxiliary device for gas protection in titanium alloy MIG welding proposed in this utility model.

[0026] Legend:

[0027] 1. Cover; 2. Rubber parts; 3. Auxiliary plate; 4. Mounting ring; 5. Air supply assembly; 7. Bolt; 11. First fixing frame; 12. Mounting plate; 13. Dispersion plate; 31. Second fixing frame; 32. Mounting groove; 33. Ball bearing; 21. Rubber sheet; 22. Limiting strip; 51. Air supply ring; 52. Air inlet pipe; 511. Air supply port. Detailed Implementation

[0028] 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.

[0029] Reference Figure 1 - Figure 3An embodiment of this utility model provides a titanium alloy MIG welding gas protection auxiliary device, including a cover 1, which is used to protect the titanium alloy weld. The bottom left and right sides of the cover 1 are provided with auxiliary plates 3, which are used to connect various components. The left and right sides of the cover 1 are provided with rubber parts 2, which are used to protect the sides of the device. The entire part is made of rubber. The top of the cover 1 is fixedly connected with an installation ring 4, which is used to install the welding torch. The upper part of the cover 1 is provided with a gas supply component 5, which is used to supply argon gas into the cover 1.

[0030] Furthermore, the bottom of the auxiliary plate 3 is rotatably connected with multiple ball bearings 33, which are used to assist in the movement of the cover 1. The ball bearings 33 are inseparable from the auxiliary plate 3. The ball bearings 33 can reduce the friction when the cover 1 moves. The middle of the auxiliary plate 3 is provided with a mounting groove 32, which is used to fix it to the cover 1. The bottom surface of the cover 1 is fixedly connected with a mounting plate 12, which is used to connect with the auxiliary plate 3. The mounting plate 12 is movably connected to the mounting groove 32. The mounting plate 12 and the mounting groove 32 are connected together by multiple bolts 7, which facilitate the assembly and disassembly of the auxiliary plate 3 and the cover 1. The left and right sides of the cover 1 are fixedly connected with a first fixing frame 11. The two auxiliary plates 3 are fixedly connected with a second fixing frame 31 on the side that is far apart from each other. Fixed frame 11 and fixed frame 31 are symmetrically arranged. Fixed frame 11 and fixed frame 31 cooperate with each other to fix rubber part 2. Rubber part 2 includes rubber sheet 21, which is used to protect the side of the device. It can produce a certain degree of deformation and can better fit the surface of titanium alloy. Limiting strip 22 is fixedly connected to the upper part of rubber sheet 21, which is used to fix rubber sheet 21. Limiting strip 22 is movably connected to fixed frame 11 and fixed frame 31, which can seal the gap at the connection between fixed frame 11 and fixed frame 31, as well as the gap at the connection between cover 1 and auxiliary plate 3.

[0031] like Figure 4 As shown, a dispersion plate 13 is fixedly connected to the lower part of the inner wall of the cover 1. The dispersion plate 13 has fine holes, which can finely disperse the argon gas, so that the argon gas can enter the cover 1 more evenly, thereby better protecting the titanium alloy weld. The gas supply component 5 includes a gas supply ring 51, which is used to cooperate in the supply of argon gas. The gas supply ring 51 is fixedly connected to the cover 1. An air inlet pipe 52 is fixedly connected to the rear of the gas supply ring 51, which can be connected to the argon gas storage device through a hose. The air inlet pipe 52 passes through and is fixedly connected to the cover 1. The bottom of the gas supply ring 51 has multiple air supply ports 511, which are used to cooperate in supplying argon gas to the cover 1.

[0032] Working principle: When welding titanium alloy, the argon storage device is first turned on. Argon gas is delivered to the inlet pipe 52 through the hose. The argon gas enters the gas supply ring 51 through the gas supply pipe 52 and is sent into the cover 1 through the gas supply port 511 at the bottom of the gas supply ring 51. The argon gas passes through the dispersion plate 13. When the argon gas passes through the fine holes of the dispersion plate 13, the argon gas is divided into finer and more uniform particles by the holes, which can better protect the titanium alloy welding area. As the titanium alloy welding operation proceeds, the welding torch will move. When it moves, the cover 1 connected to the welding torch through the mounting ring 4, as well as the auxiliary plate 3 and rubber parts 2 connected to the cover 1, will be moved accordingly. During the movement, the rubber parts 2 will always be in contact with the surface of the titanium alloy weldment, and the ball bearings 33 will roll accordingly to assist the movement of the cover 1 and the auxiliary plate 3.

[0033] When the ball bearing 33 wears out or the rubber part 2 needs to be replaced, first loosen the bolts 7 between the cover 1 and the auxiliary plate 3, so that the bolts 7 are separated from the mounting plate 12 and the auxiliary plate 3. Then, pull the auxiliary plate 3 to separate it from the cover 1. At this time, the limiting strip 22 of the rubber part 2 will be separated from the second fixing frame 31. If the rubber part 2 needs to be replaced, the limiting strip 22 can be removed from the first fixing frame 11. Then, the limiting strip 22 of the new rubber part 2 can be inserted into the first fixing frame 11. Then, the mounting plate 12 at the bottom of the cover 1 can be aligned with the mounting groove 32 on the new auxiliary plate 3 and inserted so that the limiting strip 22 is inserted into the second fixing frame 31. Then, the auxiliary plate 3 and the cover 1 can be fixed together with the bolts 7.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas shielding auxiliary device for titanium alloy MIG welding, comprising a cover (1), characterized in that: The bottom left and right sides of the cover (1) are provided with auxiliary plates (3), the left and right sides of the cover (1) are provided with rubber parts (2), the top of the cover (1) is fixedly connected with an installation ring (4), and the upper part of the cover (1) is provided with an air supply component (5). The bottom of the auxiliary plate (3) is rotatably connected with a ball bearing (33) and there are multiple ball bearings. The middle part of the auxiliary plate (3) is provided with an installation groove (32). The bottom surface of the cover (1) is fixedly connected with an installation plate (12). The installation plate (12) is movably connected with the installation groove (32). The installation plate (12) and the installation groove (32) are connected together by a bolt (7) and there are multiple bolts.

2. The auxiliary device for gas protection in titanium alloy MIG welding according to claim 1, characterized in that: The cover (1) is fixedly connected to a No. 1 fixing frame (11) on both the left and right sides.

3. The auxiliary device for gas protection in titanium alloy MIG welding according to claim 2, characterized in that: The two auxiliary plates (3) are fixedly connected to a second fixing frame (31) on the side away from each other. The first fixing frame (11) and the second fixing frame (31) are symmetrically arranged.

4. The auxiliary device for gas protection in titanium alloy MIG welding according to claim 1, characterized in that: A dispersion plate (13) is fixedly connected to the lower part of the inner wall of the cover (1), and the dispersion plate (13) has fine holes.

5. The auxiliary device for gas protection in titanium alloy MIG welding according to claim 3, characterized in that: The rubber component (2) includes a rubber sheet (21), and a limiting strip (22) is fixedly connected to the upper part of the rubber sheet (21). The limiting strip (22) is movably connected to the first fixing frame (11) and the second fixing frame (31).

6. The auxiliary device for gas protection in titanium alloy MIG welding according to claim 1, characterized in that: The air supply assembly (5) includes an air supply ring (51), which is fixedly connected to the cover (1). An air inlet pipe (52) is fixedly connected to the rear of the air supply ring (51), and the air inlet pipe (52) passes through and is fixedly connected to the cover (1).

7. The auxiliary device for gas protection in titanium alloy MIG welding according to claim 6, characterized in that: The bottom of the air supply ring (51) has multiple air supply ports (511).

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