On-board in-situ titanium alloy welding atmosphere protection device

Abstract

The utility model relates to the technical field of welding, in particular to an onboard in-situ titanium alloy welding atmosphere protection device. Comprising a protective shell, a nickel net horizontally fixed in the protective shell, a protective net horizontally fixed in the protective shell and located below the nickel net, and an air guide pipe horizontally arranged in the protective shell and located above the nickel net, one end of the air guide pipe extends out of one side of the protective shell, and the other end of the air guide pipe extends out of the other side of the protective shell. A handle is arranged at the upper end of the protective shell, and sealing rubber protruding out of the end face of the protective shell is arranged on the inner wall of the periphery of the lower end of the protective shell. The utility model has the advantages of good accessibility, simple clamping and good end fitting degree, solves the problem of effective moving space by reasonably configuring the spatial position of the charging connector, solves the problem of on-machine repair of the titanium alloy structural member at present by adopting a nickel net honeycomb structure and dense array sieve pores, reduces the repair rate of the product, improves the repair quality of the product, and reduces the production cost. And the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to an on-machine in-situ titanium alloy welding atmosphere protection device. Background Art

[0002] During the welding and repair process of titanium alloy parts, real-time protection is required under argon atmosphere. When welding titanium alloy structural parts in situ on the machine, the welding repair area needs to be accurately corrected separately, and it needs to move with the welding gun to provide mobile protection for the titanium alloy structural parts. Conventional welding repair equipment cannot meet the protection requirements, which often results in defects such as poor weld surface formation and oxygen discoloration, affecting the weld strength. Utility Model Content

[0003] In order to solve the above technical problems, the utility model proposes an on-machine in-situ titanium alloy welding atmosphere protection device.

[0004] The technical problem to be solved by the utility model is achieved by the following technical solutions:

[0005] An on-machine in-situ titanium alloy welding atmosphere protection device comprises a protection shell, a nickel mesh horizontally fixed inside the protection shell, a protective mesh horizontally fixed inside the protection shell and located below the nickel mesh, and an air duct horizontally arranged inside the protection shell and located above the nickel mesh, one end of the air duct protruding from one side of the protection shell, the lower end of the protection shell is open, a handle is arranged on the upper end of the protection shell, and sealing rubber protruding from the end face of the protection shell is arranged on the inner walls around the lower end of the protection shell.

[0006] As a further improvement of the present invention, the protective shell is made of austenitic stainless steel.

[0007] As a further improvement of the present invention, the nickel mesh adopts a honeycomb structure.

[0008] As a further improvement of the present invention, the protective net adopts a lattice mesh structure.

[0009] As a further improvement of the present invention, the nickel mesh, the protective mesh and the protective shell are fixedly connected by brazing.

[0010] As a further improvement of the present invention, the air guide tube is in parallel with the nickel mesh.

[0011] As a further improvement of the present invention, the air guide pipe is connected to the protective shell by butt welding.

[0012] The beneficial effects of the utility model are:

[0013] The utility model provides an on-machine in-situ titanium alloy welding atmosphere protection device, which has good accessibility, simple clamping, good end fitting, and solves the problem of effective moving space by reasonably configuring the spatial position of the inflation nozzle. The nickel mesh honeycomb structure and dense array sieve holes are adopted to solve the current on-machine repair problems of titanium alloy structural parts, reduce the product return rate, improve the product repair quality, and enhance work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0017] Figure 3 It is a structural schematic diagram of the protective net in the utility model.

[0018] In the figure: 1. Protective shell; 2. Nickel mesh; 3. Protective net; 4. Handle; 5. Air guide tube; 6. Sealing rubber. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] like Figure 1 to Figure 2 As shown, an on-machine in-situ titanium alloy welding atmosphere protection device is mainly composed of a protection shell 1, a nickel mesh 2, a protective mesh 3, a handle 4, an air guide tube 5, and a sealing rubber 6. The material of the protection shell 1 is austenitic stainless steel, which achieves good corrosion resistance, good weldability, and ensures good gas flow. The device is fixed and strengthened as a whole. The lower end of the protection shell 1 is open, and the sealing rubber 6 is bonded to the inner side of the lower end of the protection shell 1. At the same time, the sealing rubber 6 protrudes from the end face of the protection shell 1. The flexible sealing relationship between the sealing rubber 6 and the welding surface is used to reduce the sliding wear between the protection shell 1 and the welding surface, while ensuring the sealing effect between the entire device and the welding surface.

[0021] The nickel mesh 2 is connected to the protective shell 1 by brazing, and the nickel mesh 2 adopts a honeycomb structure to achieve buffering of the input gas.

[0022] like Figure 3 As shown, it is a schematic diagram of the structure of the protection net 3. The protection net 3 uses a wire cutting process to achieve a lattice mesh structure. The protection net 3 is located below the nickel net 2. The protection net 3 is connected to the protective shell 1 by brazing.

[0023] The handle 4 is fixedly connected to the upper end of the protective shell 1 to achieve convenient movement of the entire device.

[0024] The air duct 5 is welded to the protective shell 1, one end of the air duct 5 is inserted into the protective shell 1 to effectively input the gas into the protective shell 1, and the other end is located outside the protective shell 1, and is used to connect with the welding gas cylinder to achieve convenient gas output. The air duct 5 is located above the nickel mesh 2 and is parallel to the nickel mesh 2 to reduce the impact of the input gas on the nickel mesh and avoid local impact.

[0025] The working principle and use process of this utility model:

[0026] When in use, the atmosphere protection device is connected to the welding device according to the failure position and failure mode of the titanium alloy structural part. During welding, argon gas is input from the air duct 5 and output from the protective net 3 to the surface of the weld. The relative position of the atmosphere protection device and the welding point is changed by holding the handle 4, and the welding power is turned on. During the welding process, the atmosphere protection device moves synchronously with the formation of the weld, and the flow rate of argon gas is adjusted to meet the protective gas requirements. Argon gas is continuously introduced through the air duct 5, and the welding work is started. When the welding position needs to be changed, it can be adjusted through the handle 4, and finally the repair work of the workpiece in a pure argon gas environment is achieved.

[0027] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An on-machine in-situ titanium alloy welding atmosphere protection device, characterized in that: The invention comprises a protective shell (1), a nickel mesh (2) fixed horizontally inside the protective shell (1), a protective mesh (3) fixed horizontally inside the protective shell (1) and located below the nickel mesh (2), and an air duct (5) arranged horizontally inside the protective shell (1) and located above the nickel mesh (2), wherein one end of the air duct (5) extends out from one side of the protective shell (1), the lower end of the protective shell (1) is open, the upper end of the protective shell (1) is provided with a handle (4), and the inner walls around the lower end of the protective shell (1) are provided with sealing rubber (6) protruding from the end face of the protective shell (1).

2. The on-machine in-situ titanium alloy welding atmosphere protection device according to claim 1, characterized in that: The protective shell (1) is made of austenitic stainless steel.

3. The on-machine in-situ titanium alloy welding atmosphere protection device according to claim 1, characterized in that: The nickel mesh (2) adopts a honeycomb structure.

4. The on-machine in-situ titanium alloy welding atmosphere protection device according to claim 1, characterized in that: The protective net (3) adopts a dot matrix mesh structure.

5. The on-machine in-situ titanium alloy welding atmosphere protection device according to claim 1, characterized in that: The nickel net (2), the protective net (3) and the protective shell (1) are fixedly connected by brazing.

6. The on-machine in-situ titanium alloy welding atmosphere protection device according to claim 1, characterized in that: The air guide tube (5) is in parallel with the nickel mesh (2).

7. The on-machine in-situ titanium alloy welding atmosphere protection device according to claim 1, characterized in that: The air guide pipe (5) is connected to the protective shell (1) by butt welding.

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