Argon protection cover suitable for small-diameter workpiece

Abstract

The utility model provides an argon protective cover suitable for a small-diameter workpiece, which relates to an argon arc welding protective cover and comprises a protective cover shell, a front baffle and a rear baffle are respectively mounted at two ends of the protective cover shell, and thickened high-temperature-resistant fireproof cloth is mounted on the side walls of the front baffle and the rear baffle through rivets. A flexible copper net is installed between the inner walls of the protective cover shell, a gas dispersing pipe is arranged above the flexible copper net, a red copper gas inlet pipe is installed on one side of the gas dispersing pipe in an inserted mode, and one end of the red copper gas inlet pipe penetrates through the side wall of the protective cover shell and extends to the outer wall of the protective cover shell. And the argon arc welding can be better facilitated, the welding effect is improved, and therefore the argon arc welding device is worthy of wide application and popularization.

Description

Technical Field

[0001] The utility model belongs to the technical field of argon arc welding protective covers, and more specifically, particularly relates to an argon gas protective cover suitable for small-diameter workpieces. Background Art

[0002] Argon arc welding is a welding technology that uses argon as a shielding gas, also known as argon shielded welding. It is to introduce argon shielding gas around the arc welding area to isolate the air outside the welding area and prevent oxidation of the welding area.

[0003] Based on the above, the inventors have found the following problems: the prior art has the following problems in the welding process: 1. When the existing argon arc welding of small-diameter workpieces is protected by argon gas, the welding space is simply ventilated through an air inlet pipe, and the argon gas cannot be evenly distributed in the welding space; 2. The existing argon arc welding protective cover is only a flat plate or a fixed-length arc structure, which cannot adapt to the welding of small-diameter workpieces. The single structural size cannot be completely fitted with the equipment surface, resulting in air entering the welding area and causing oxidation.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an argon gas protective cover suitable for small-diameter workpieces is provided, in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose and effect of the utility model, which is suitable for an argon protective cover for small-diameter workpieces, are achieved by the following specific technical means:

[0006] An argon gas protective cover suitable for small-diameter workpieces comprises a protective cover shell, a front baffle and a rear baffle are respectively installed at both ends of the protective cover shell, and the side walls of the front baffle and the rear baffle are installed with thickened high-temperature resistant fireproof cloth through rivets, a flexible copper mesh is installed between the inner walls of the protective cover shell, an air diffusion pipe is provided above the flexible copper mesh, a red copper air inlet pipe is inserted and installed on one side of the air diffusion pipe, and one end of the red copper air inlet pipe penetrates the side wall of the protective cover shell and extends to the outer wall.

[0007] Furthermore, the shell of the protective cover shell is a forward and reverse inverted joint chain structure.

[0008] Furthermore, the diameter of the air diffusion pipe is 8 mm, and 2 mm pores are evenly distributed through the upper end surface of the air diffusion pipe.

[0009] Furthermore, a through hole with a diameter of 1 mm is penetrated through the surface of the protective cover shell.

[0010] Furthermore, the thickness of the flexible copper mesh is 0.5 mm, and the mesh number of the flexible copper mesh is 100 meshes.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. By thickening the high-temperature resistant fireproof cloth with a maximum temperature of 1000℃, the fireproof cloth will naturally droop and fit the surface of the equipment by its own weight when placed on the surface of the equipment, better isolate the air, prevent oxidation of the welding area, and improve the welding quality;

[0013] 2. The positive and negative inverted joint chain structure has strong flexibility. Due to the multi-section form, the deformation range is large. The protective cover can be shaped at will by relying on its own weight, so that the protective cover can fit the surface of the equipment completely;

[0014] 3. A 2mm long strip of air holes is drilled at the top of the diffuser pipe, so that the argon gas enters the protective cover and then flows upward, forming a circulating gas from top to bottom inside the protective cover, ensuring that the argon gas in the protective cover is evenly distributed;

[0015] 4. The composite structure is formed by the 100-mesh flexible copper mesh and the 1mm hole in the middle of the joint chain. The joint chain is evenly distributed with sieve holes with a diameter of 1mm and a hole spacing of 4mm. The argon gas enters the protective cover and first passes through the 100-mesh flexible copper mesh, and then passes through the joint chain with evenly distributed sieve holes to ensure that the argon protective gas in the contact welding area is uniform and has the same flow rate, and the flexible copper mesh can bend with the joint chain protective cover as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic diagram of adjusting the arc of an argon protective cover suitable for a small-diameter workpiece.

[0017] Figure 2 The utility model is a schematic diagram of a horizontal placement of an argon protective cover suitable for a small-diameter workpiece.

[0018] Figure 3 The utility model is a schematic diagram of an enlarged structure of an argon gas protective cover suitable for a small-diameter workpiece.

[0019] Figure 4 The utility model is a top view schematic diagram of an argon gas protective cover suitable for small-diameter workpieces.

[0020] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0021] 1. Copper air inlet pipe; 2. Protective cover shell; 3. Flexible copper mesh; 4. Front baffle; 5. Rear baffle; 6. Air diffuser; 7. Through hole; 8. Thickened high temperature resistant fireproof cloth. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0023] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Example:

[0026] As attached Figure 1 To Attachment Figure 4 As shown:

[0027] The utility model provides an argon gas protective cover suitable for small-diameter workpieces, comprising a protective cover shell 2, wherein a front baffle 4 and a rear baffle 5 are respectively installed at both ends of the protective cover shell 2, and the side walls of the front baffle 4 and the rear baffle 5 are installed with thickened high-temperature resistant fireproof cloth 8 through rivets. The thickened high-temperature resistant fireproof cloth adopts a thickened type with a maximum bearing temperature of 1000°C. When placed on the surface of an equipment, the fireproof cloth naturally droops and fits the surface of the equipment by its own weight, better isolating the air, preventing oxidation of the welding area, and improving the welding quality. A flexible copper mesh 3 is installed between the inner walls of the protective cover shell 2, and an air diffusion pipe 6 is provided above the flexible copper mesh 3. A red copper air inlet pipe 1 is inserted and installed on one side of the air diffusion pipe 6, and one end of the red copper air inlet pipe 1 passes through the side wall of the protective cover shell 2 and extends to the outer wall.

[0028] Among them, the shell of the protective cover shell 2 is a positive and negative inverted joint chain structure, which has strong flexibility. Due to its multi-section form, it has a large deformation range and can be arbitrarily shaped by relying on the weight of the protective cover itself, so that the protective cover can fit completely on the surface of the equipment.

[0029] The diameter of the diffusion pipe 6 is 8 mm, and 2 mm air holes are evenly distributed on the upper end surface of the diffusion pipe 6. 2 mm long strip air holes are drilled through the upper end of the diffusion pipe, so that the argon gas enters the protective cover and then exhausts upward, forming a circulating gas from top to bottom inside the protective cover, ensuring that the argon gas in the protective cover is evenly distributed.

[0030] A through hole 7 with a diameter of 1 mm is formed through the surface of the protective cover shell 2 .

[0031] Among them, the thickness of the flexible copper mesh 3 is 0.5mm, and the mesh number of the flexible copper mesh 3 is 100 mesh. The 100-mesh flexible copper mesh and the 1mm hole in the middle of the joint chain form a composite structure. The joint chain is evenly distributed with sieve holes with a diameter of 1mm and a hole spacing of 4mm. The argon gas enters the protective cover first through the 100-mesh flexible copper mesh, and then through the joint chain with evenly distributed sieve holes to ensure that the argon protective gas in the contact welding area is uniform and has the same flow rate, and the flexible copper mesh can bend with the joint chain protective cover as a whole.

[0032] The specific usage and function of this embodiment are as follows:

[0033] When using this type of protective cover, first check the overall integrity of the protective cover. It can be used only after confirmation. Place the protective cover at the place to be welded. The thickened high-temperature resistant fireproof cloth adopts a thickened type with a maximum temperature of 1000℃. When placed on the surface of the equipment, the fireproof cloth naturally droops and fits the surface of the equipment by its own weight, better isolating the air, preventing oxidation of the welding area, and improving the welding quality. Then, a 2mm long strip of air holes is drilled at the upper end of the diffuser pipe, so that the argon gas enters the protective cover and then exhausts upward, forming a circulating gas from top to bottom inside the protective cover to ensure that the argon gas in the protective cover is evenly distributed. Finally, the 100-mesh flexible copper mesh and the 1mm hole in the middle of the joint chain are a composite structure, and the joint chain is evenly distributed with sieve holes with a diameter of 1mm and a hole spacing of 4mm. Argon enters the protective cover first through the 100-mesh flexible copper mesh, and then through the joint chain with evenly distributed sieve holes to ensure that the argon protective gas in contact with the welding area is uniform and has the same flow rate, and the flexible copper mesh can be bent as a whole with the joint chain protective cover.

[0034] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An argon protective cover suitable for small diameter workpieces, characterized in that: The invention comprises a protective cover shell (2), wherein a front baffle plate (4) and a rear baffle plate (5) are respectively installed at both ends of the protective cover shell (2), and the side walls of the front baffle plate (4) and the rear baffle plate (5) are installed with thickened high-temperature resistant fireproof cloth (8) through rivets, a flexible copper mesh (3) is installed between the inner walls of the protective cover shell (2), an air diffusion pipe (6) is arranged above the flexible copper mesh (3), a copper air intake pipe (1) is inserted and installed on one side of the air diffusion pipe (6), and one end of the copper air intake pipe (1) passes through the side wall of the protective cover shell (2) and extends to the outer wall.

2. An argon protective cover for small diameter workpieces as claimed in claim 1, characterized in that: The shell of the protective cover shell (2) is a forward and reverse inverted joint chain structure.

3. An argon protective cover for small diameter workpieces as claimed in claim 1, characterized in that: The diameter of the air diffusion pipe (6) is 8 mm, and the upper end surface of the air diffusion pipe (6) is evenly distributed with 2 mm air holes.

4. An argon gas protective cover suitable for small diameter workpieces as claimed in claim 1, characterized in that: A through hole (7) with a diameter of 1 mm is provided through the surface of the protective cover shell (2).

5. The argon gas protective cover for small diameter workpieces as claimed in claim 1, characterized in that: The thickness of the flexible copper mesh (3) is 0.5 mm, and the mesh number of the flexible copper mesh (3) is 100 meshes.

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