Laser cladding head waterway protective gas hood

Abstract

The utility model discloses a laser cladding head waterway protective gas hood, which comprises a circulating waterway, a protective part and a mounting part, the protective part is in a conical tube shape, the inner side and the outer side of the protective part are respectively an inner cone and an outer cone, and the inner cone is matched with a laser cladding head; the installation part is installed on the outer side of the end, with the large diameter, of the protection part and comprises a water inlet and outlet connector installation face and a splicing installation face, the water inlet and outlet connector installation face is arranged on the outer side face of the installation part, and the splicing installation face is arranged on the top face of the installation part. According to the water path protection gas hood of the laser cladding head, the circulating water path is arranged between the inner cone and the outer cone of the protection part, cooling can be carried out in the laser cladding work so as to protect the gas hood, and therefore the situation that quality is abnormal and the protection gas hood deforms at high temperature due to residues falling due to high-temperature melting loss of the protection gas hood is avoided; the loss time and the cost of replacing the protective gas hood due to frequent melting loss and deformation are greatly reduced, and the processing quality is improved.

Description

Technical Field

[0001] The utility model relates to a waterway protection gas cover for a laser cladding head, belonging to the technical field of laser cladding. Background Art

[0002] When laser cladding is performed in an air environment, the metal surface will oxidize, causing abnormal laser cladding processing. Therefore, laser cladding processing is performed in a gas protection environment to ensure the quality and performance of the cladding processing. At this time, a protective gas hood is needed to reduce the gas space and avoid waste of protective gas.

[0003] The traditional protective gas hood has limited structural space and is not easy to arrange water channels. During laser cladding processing, the working surface will generate high heat, which will cause the protective gas hood to melt due to excessive temperature. The residues dropped by the melting will cause abnormal cladding quality and frequent replacement of the protective gas hood. At the same time, the protective gas hood is difficult to install and disassemble due to deformation, resulting in poor laser cladding quality and excessive waste of time and cost.

[0004] It can be seen that in order to solve the above technical problems and ensure the service life of the protective gas hood, a laser cladding head water channel protective gas hood is urgently needed. Utility Model Content

[0005] The utility model aims to overcome the deficiencies in the prior art and provide a water channel protective gas hood for a laser cladding head. By arranging a circulating water channel between the inner cone and the outer cone of the protection part, the gas hood can be cooled during the laser cladding process to protect the gas hood, thereby avoiding quality abnormalities and high-temperature deformation of the protective gas hood caused by residues dropped due to high-temperature melting of the protective gas hood, greatly reducing the loss time and cost of replacing the protective gas hood due to frequent melting and deformation, improving the processing quality, and changing the protective gas hood from a consumable part to a standard part.

[0006] In order to achieve the above purpose / solve the above technical problems, the utility model is implemented by adopting the following technical solutions: a laser cladding head waterway protection gas cover, including a circulating waterway, a protection part and a mounting part, wherein:

[0007] The protection part is in a conical tubular shape, and the inner side and the outer side are respectively an inner cone and an outer cone, and the inner cone matches the laser cladding head;

[0008] The mounting portion is mounted on the outer side of the end of the protection portion with a larger diameter, and includes an inlet and outlet water joint mounting surface and a splicing mounting surface. The inlet and outlet water joint mounting surface is arranged on the outer side surface of the mounting portion, and the splicing mounting surface is arranged on the top surface of the mounting portion.

[0009] The circulating water circuit is arranged between the inner cone and the outer cone, and extends from the upper part to the lower part of the protection part. The water inlet and outlet ends of the circulating water circuit are both connected to the installation surface of the water inlet and outlet joints.

[0010] Furthermore, it also includes a cylindrical positioning device, which is arranged on the splicing installation surface and is used to cooperate with the inner circular hole at the end of the cladding head to achieve position positioning.

[0011] Furthermore, it also includes a V-shaped groove, which is arranged on the side of the cylindrical positioning and is used to cooperate with the tapered screw arranged on the side of the inner circular hole at the end of the cladding head.

[0012] Furthermore, it also includes a water inlet joint thread and a water outlet joint thread. The water inlet end of the circulating water circuit is connected to the inlet and outlet water joint installation surface through the water inlet joint thread, and the water outlet end of the circulating water circuit is connected to the inlet and outlet water joint installation surface through the water outlet joint thread.

[0013] Furthermore, the circulating water channel 7 is a serpentine water channel.

[0014] Furthermore, the inner diameter of the cylindrical positioning member 3 matches the inner diameter of the end of the protection portion.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The laser cladding head water channel protection gas hood provided by the utility model can cool the protection gas hood during the laser cladding process by setting a circulating water channel between the inner cone and the outer cone of the protection part, thereby avoiding the quality abnormality and high temperature deformation of the protection gas hood caused by the residues dropped due to high temperature melting of the protection gas hood, greatly reducing the loss time and cost of replacing the protection gas hood due to frequent melting and deformation, improving the processing quality, and making the protection gas hood change from a consumable part to a standard part;

[0017] The waterway protective gas cover of the laser cladding head provided by the utility model realizes position positioning by setting a cylindrical positioning to cooperate with the inner circular hole at the end of the cladding head, thereby realizing the rapid matching and installation of the protective gas cover and the laser cladding head;

[0018] The laser cladding head water channel protective gas cover provided by the utility model is provided with a V-shaped groove, which is used to cooperate with the tapered screws provided on the side of the inner circular hole at the end of the cladding head through the V-shaped groove after the protective gas cover and the inner circular hole at the end of the laser cladding head are matched and installed through cylindrical positioning, so as to achieve locking through the tapered screw and the V-shaped groove, thereby achieving the positioning function. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic cross-sectional view of the structure of the waterway protection gas cover of the laser cladding head provided in the first embodiment;

[0020] Figure 2 yes Figure 1 The schematic diagram of the main structure of the water channel protection gas hood of the laser cladding head is shown.

[0021] In the figure: 1. V-shaped groove; 2. Inner cone; 3. Cylindrical positioning column; 4. Water inlet joint installation surface; 5. Water inlet joint thread; 6. Outer cone; 7. Circulating water channel; 8. Water outlet joint thread; 9. Splicing installation plane. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances. Embodiment 1

[0025] like Figure 1 and Figure 2 As shown, this embodiment provides a laser cladding head waterway protection gas cover, including a circulating waterway 7, a protection part and a mounting part, wherein:

[0026] The protection part is in a conical tubular shape, and the inner side and the outer side are respectively an inner cone 2 and an outer cone 6, and the inner cone 2 matches the laser cladding head;

[0027] The mounting portion is mounted on the outer side of the end with a larger diameter of the protection portion, and includes an inlet and outlet water joint mounting surface 4 and a splicing mounting surface 9. The inlet and outlet water joint mounting surface 4 is arranged on the outer side surface of the mounting portion, and the splicing mounting surface 9 is arranged on the top surface of the mounting portion;

[0028] The circulating water circuit 7 is arranged between the inner cone 2 and the outer cone 6 , and extends from the upper part to the lower part of the protection part. The water inlet and outlet ends of the circulating water circuit 7 are both connected to the inlet and outlet joint installation surface 4 .

[0029] In order to achieve the matching installation of the protective gas hood and the laser cladding head, a cylindrical positioning 3 is also included. The cylindrical positioning 3 is arranged on the splicing installation surface 9 and is used to cooperate with the inner circular hole at the end of the cladding head to achieve position positioning. Figure 2 As shown, the cylindrical positioning 3 is in the shape of a circular ring. Specifically, the cylindrical positioning 3 is adapted to the inner circular hole at the end of the laser cladding head. When the laser cladding head is matched with the protective gas hood, the cylindrical positioning 3 is used to quickly position the cladding head. The installation is smooth, and the installation depth needs to reach the splicing installation plane 9.

[0030] In order to fix the protective gas hood and the laser cladding head after they are matched and installed, a V-shaped groove 1 is also included. The V-shaped groove 1 is opened on the side of the cylindrical positioning 3. After the protective gas hood and the inner circular hole at the end of the laser cladding head are matched and installed through the cylindrical positioning 3, the V-shaped groove 1 is matched with the tapered screw set on the side of the inner circular hole at the end of the cladding head to achieve locking through the tapered screw and the V-shaped groove 1, thereby achieving the positioning function;

[0031] Among them, the cylindrical positioning 3 and the splicing installation plane 9 are processed by lathe fine turning process to ensure the dimensions of the cylindrical positioning 3 and the splicing installation plane 9 to meet the installation requirements.

[0032] In order to achieve the access of water inlet and outlet of the circulating water circuit 7, it also includes an inlet joint thread 5 and an outlet joint thread 8. The water inlet end of the circulating water circuit 7 is connected to the inlet and outlet joint installation surface 4 through the inlet joint thread 5, and the water outlet end of the circulating water circuit 7 is connected to the inlet and outlet joint installation surface 4 through the outlet joint thread 8. The inlet joint thread 5 is tightened clockwise with an open-end wrench, and the protective gas hood water inlet joint 5 is connected through the cladding head water outlet pipe. The outlet joint thread 8 is tightened clockwise with an open-end wrench, and the protective gas hood water outlet joint 8 is connected to the chiller to achieve a water circuit circulation system.

[0033] like Figure 2 As shown, in order to ensure the cooling effect of the circulating water channel 7, in this embodiment, the circulating water channel 7 is a serpentine water channel, winding between the inner cone 2 and the outer cone 6.

[0034] In order to ensure the matching effect between the cylindrical positioning member 3 and the end of the laser cladding head, the inner diameter of the cylindrical positioning member 3 matches the inner diameter of the end of the protection portion.

[0035] In summary, the laser cladding head water channel protective gas hood provided in the present embodiment can be cooled during the laser cladding operation to protect the gas hood by setting a circulating water channel 7 between the inner cone 2 and the outer cone 6 of the protective part, thereby avoiding quality abnormalities and high-temperature deformation of the protective gas hood caused by residues dropped due to high-temperature melting of the protective gas hood, greatly reducing the loss time and cost of replacing the protective gas hood due to frequent melting and deformation, improving the processing quality, and changing the protective gas hood from a consumable part to a standard part; by setting a cylindrical positioning 3 to cooperate with the inner circular hole at the end of the cladding head to achieve position positioning, thereby achieving rapid matching and installation of the protective gas hood and the laser cladding head; by setting a V-shaped groove 1, after the protective gas hood and the inner circular hole at the end of the laser cladding head are matched and installed through the cylindrical positioning 3, the V-shaped groove 1 is matched with the tapered screw set on the side of the inner circular hole at the end of the cladding head, so as to achieve locking through the tapered screw and the V-shaped groove 1, thereby achieving the positioning function.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A laser cladding head waterway protection gas cover, characterized in that: It comprises a circulating water circuit (7), a protection part and an installation part, wherein: The protection portion is in a conical tubular shape, with the inner side and the outer side being an inner cone (2) and an outer cone (6) respectively, and the inner cone (2) matches the laser cladding head; The mounting portion is mounted on the outside of the end of the protective portion with a larger diameter, and comprises an inlet and outlet water joint mounting surface (4) and a splicing mounting surface (9), wherein the inlet and outlet water joint mounting surface (4) is arranged on the outer side surface of the mounting portion, and the splicing mounting surface (9) is arranged on the top surface of the mounting portion; The circulating water circuit (7) is arranged between the inner cone (2) and the outer cone (6), and extends from the upper part of the protection part to the lower part. The water inlet and outlet ends of the circulating water circuit (7) are both connected to the water inlet and outlet joint installation surface (4).

2. The laser cladding head waterway protection gas cover according to claim 1, characterized in that: It also includes a cylindrical positioning device (3), which is arranged on the splicing installation surface (9) and is used to cooperate with the inner circular hole at the end of the cladding head to achieve position positioning.

3. The laser cladding head waterway protection gas cover according to claim 2, characterized in that: It also comprises a V-shaped groove (1), wherein the V-shaped groove (1) is arranged on the side of the cylindrical positioning (3) and is used to cooperate with a tapered screw arranged on the side of the inner circular hole at the end of the cladding head.

4. The laser cladding head waterway protection gas cover according to claim 1, characterized in that: It also comprises a water inlet joint thread (5) and a water outlet joint thread (8), wherein the water inlet end of the circulating water circuit (7) is connected to the water inlet and outlet joint mounting surface (4) via the water inlet joint thread (5), and the water outlet end of the circulating water circuit (7) is connected to the water inlet and outlet joint mounting surface (4) via the water outlet joint thread (8).

5. The laser cladding head waterway protection gas cover according to claim 1, characterized in that: The circulating water channel (7) is a serpentine water channel.

6. The laser cladding head waterway protection gas cover according to claim 2, characterized in that: The inner diameter of the cylindrical positioning (3) matches the inner diameter of the end of the protection part.

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