A non-coloured metal pipe tube plate sealing type full position welding machine head

Abstract

The utility model discloses a kind of full-position welding machine heads for non-ferrous metal pipe tube plate sealing type, including pipe orifice plug-in tooling, sealing sleeve, front end box, rear end box, welding torch, motor, adjusting slide and shielding gas delivery pipe, the pipe orifice plug-in tooling one end passes through the round hole on the front end box and is rotatably connected with the bearing seat located in the side of L-shaped seat, the other end part of the pipe orifice plug-in tooling is located in the sealing sleeve interior, the front end box interior is equipped with shielding gas delivery pipe.The utility model has the advantages that: by sealing sleeve, the welding part that extends into its interior is separated from external air, and residual air in sealing sleeve interior is discharged by filling shielding gas in sealing sleeve interior, the color of welding part after welding is unchanged;Different specifications of sealing sleeve are used, and the connected welding torch is adjusted by cooperating adjusting slide, and the tooling welding of different diameter non-ferrous metal pipe can be coped with.

Description

Technical Field

[0001] This utility model relates to the field of non-ferrous metal tube-to-tube sheet welding technology, specifically a sealed all-position welding head for non-ferrous metal tube-to-tube sheet welding. Background Technology

[0002] Tube-to-sheet welding is a key process in the manufacture of pressure vessels, heat exchangers, and other equipment, primarily used to connect pipes to tube sheets. Existing tube-to-sheet welding heads expose the welding area to air, making it prone to oxidation and compromising the original color of the non-ferrous metal tubes. This increases post-processing steps and impacts overall welding efficiency. Therefore, this paper proposes a sealed, all-position welding head for non-ferrous metal tubes to tube sheets to address these issues. Utility Model Content

[0003] The purpose of this invention is to provide a sealed all-position welding head for non-ferrous metal pipes and tube sheets in order to solve the above problems.

[0004] This utility model achieves the above-mentioned objective through the following technical solution: a sealed all-position welding head for non-ferrous metal pipes and tube sheets, comprising a pipe insertion fixture, a sealing sleeve, a front end housing, a rear end housing, a welding torch, an L-shaped seat, a motor, an adjusting slide, and a protective gas delivery pipe. One end of the pipe insertion fixture passes through a circular hole located on the front end housing and is rotatably connected to a bearing seat located on one side of the L-shaped seat. The other end of the pipe insertion fixture is located inside the sealing sleeve, and the opening of the sealing sleeve is fixed between the circular hole and the clamping ring block. The welding end of the welding torch is located inside the sealing sleeve, and one end of the welding torch is connected to the adjusting slide, and the adjusting slide and one end of the L-shaped seat are slidably connected to each other. The side wall of the other end of the L-shaped seat is connected to the shaft end of the motor. A protective gas delivery pipe is provided inside the front end housing, and a perforated block is connected to the protective gas delivery pipe, with an outlet hole in the center of the perforated block.

[0005] Preferably, the outer end face of the sealing sleeve is provided with a pipe insertion port, and the sealing sleeve has a cylinder of various lengths.

[0006] Preferably, one end face of the front end housing is fixedly mounted on the rear end housing, and the inner end face of the rear end housing is fixedly connected to the front end of the motor. A protective gas storage tank is also provided inside the rear end housing.

[0007] Preferably, the adjusting slide is fixed to the guide rail located at one end of the L-shaped seat by bolts.

[0008] Preferably, the welding torch is in a rotating welding state with the nozzle insertion tooling as the center.

[0009] Preferably, an observation and monitoring camera is installed inside the sealing sleeve.

[0010] Compared with the prior art, the advantages of this utility model are as follows: the welding part inserted into it is isolated from the outside air by the sealing sleeve, and the protective gas is filled into the sealing sleeve to expel the residual air inside the sealing sleeve, thus ensuring that the color of the welding part does not change after welding; by using sealing sleeves of different specifications and adjusting the welding gun connected to them with the adjusting slide, it can handle the tooling welding of non-ferrous metal pipes of different diameters. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a partial structural diagram of the present invention. Figure 1 ;

[0014] Figure 3 This is a partial structural diagram of the present invention. Figure 2 .

[0015] In the diagram: 1. Pipe insertion tooling; 110. Bearing seat; 2. Sealing sleeve; 3. Front end housing; 310. Round hole; 311. Clamping ring block; 4. Rear end housing; 5. Welding torch; 6. L-shaped seat; 7. Motor; 8. Adjusting slide; 9. Protective gas delivery pipe; 910. Hole block; 911. Gas outlet. Detailed Implementation

[0016] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Please see Figure 1-3 As shown, a sealed all-position welding head for non-ferrous metal tubes and tube sheets includes a tube insertion fixture 1, a sealing sleeve 2, a front housing 3, a rear housing 4, a welding torch 5, an L-shaped seat 6, a motor 7, an adjusting slide 8, and a protective gas delivery pipe 9. One end of the tube insertion fixture 1 passes through a circular hole 310 located on the front housing 3 and is rotatably connected to a bearing seat 110 located on one side of the L-shaped seat 6. The other end of the tube insertion fixture 1 is partially located inside the sealing sleeve 2, and the sleeve 2... The port is fixed between the round hole 310 and the clamping ring block 311. The welding end of the welding torch 5 is located inside the sealing sleeve 2, and one end of the welding torch 5 is connected to the adjusting slide 8. The adjusting slide 8 and one end of the L-shaped seat 6 are slidably connected to each other. The side wall of the other end of the L-shaped seat 6 is connected to the shaft end of the motor 7. The front end housing 3 is provided with a protective gas delivery pipe 9, and a hole block 910 is connected to the protective gas delivery pipe 9. An air outlet 911 is opened in the middle of the hole block 910.

[0020] Furthermore, the outer end face of the sealing sleeve 2 is provided with a pipe insertion port, and the sealing sleeve 2 is provided with a cylinder of various lengths.

[0021] Furthermore, one end face of the front end housing 3 is fixedly mounted on the rear end housing 4, and the inner end face of the rear end housing 4 is fixedly connected to the front end of the motor 7. A protective gas storage tank is also provided inside the rear end housing 4.

[0022] Furthermore, the adjusting slide 8 is fixed to the guide rail located at one end of the L-shaped seat 6 by bolts to prevent the adjusting slide 8 from sliding arbitrarily.

[0023] Furthermore, the welding torch 5 is in a rotating welding state with the pipe insertion tool 1 as the center, which is beneficial for performing circumferential welding on the pipe fitting.

[0024] Furthermore, an observation and monitoring camera is installed inside the sealing sleeve 2 to obtain information about the welding status of the welding area.

[0025] Working principle: The part to be welded between the end of the non-ferrous metal pipe and the protruding hole on the metal plate is inserted into the sealing sleeve 2 and fixed by the tooling of the pipe fitting 1. At the same time, the working part of the welding torch 5, which has been adjusted, is close to the part to be welded. The protective gas storage tank inside the rear box 4 is opened to discharge the protective gas through the protective gas delivery pipe 9 and the outlet 911 to fill the front box 3 and the sealing sleeve 2. At the same time, the motor 7 runs and drives the welding torch 5 connected to it to rotate around the pipe fitting 1 as the center line, so as to achieve the effect of welding torch 5 circling the part to be welded.

[0026] Compared with existing technologies, the difference is that the welding part inserted into the sealing sleeve 2 is isolated from the outside air, and the sealing sleeve 2 is filled with protective gas to expel the residual air inside the sealing sleeve 2, ensuring that the color of the welding part remains unchanged after welding; by using sealing sleeves 2 of different specifications and adjusting the welding gun 5 connected to them with the adjusting slide 8, tooling welding of non-ferrous metal pipes of different diameters can be handled.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sealing all-position welding head for non-ferrous metal tubes and tube sheets, characterized in that: The assembly includes a nozzle insertion fixture (1), a sealing sleeve (2), a front end housing (3), a rear end housing (4), a welding torch (5), an L-shaped seat (6), a motor (7), an adjusting slide (8), and a protective gas delivery pipe (9). One end of the nozzle insertion fixture (1) passes through a circular hole (310) on the front end housing (3) and is rotatably connected to a bearing seat (110) on one side of the L-shaped seat (6). The other end of the nozzle insertion fixture (1) is located inside the sealing sleeve (2), and the opening of the sealing sleeve (2) is fixed to the circular hole (310). Between the welding gun (5) and the clamping ring block (311), the welding end of the welding gun (5) is located inside the sealing sleeve (2), and one end of the welding gun (5) is connected to the adjusting slide (8), and the adjusting slide (8) and one end of the L-shaped seat (6) are slidably connected to each other. The side wall of the other end of the L-shaped seat (6) is connected to the shaft end of the motor (7). The front end housing (3) is provided with a protective gas delivery pipe (9), and a hole block (910) is connected to the protective gas delivery pipe (9). An air outlet (911) is opened in the middle of the hole block (910).

2. The sealing all-position welding head for non-ferrous metal tubes and tube sheets according to claim 1, characterized in that: The sealing sleeve (2) has a pipe insertion port on its outer end face, and the sealing sleeve (2) has a cylinder of various lengths.

3. The sealing all-position welding head for non-ferrous metal tubes and tube sheets according to claim 1, characterized in that: One end face of the front end housing (3) is fixedly installed on the rear end housing (4), and the inner end face of the rear end housing (4) is fixedly connected to the front end of the motor (7). A protective gas storage tank is also provided inside the rear end housing (4).

4. A sealed all-position welding head for non-ferrous metal tubes and tube sheets according to claim 1, characterized in that: The adjusting slide (8) is fixed to the guide rail located at one end of the L-shaped seat (6) by bolts.

5. A sealed all-position welding head for non-ferrous metal tubes and tube sheets according to claim 1, characterized in that: The welding torch (5) is in a rotating welding state with the nozzle insertion tooling (1) as the center.

6. A sealed all-position welding head for non-ferrous metal tubes and tube sheets according to claim 1, characterized in that: An observation and monitoring camera is installed inside the sealing sleeve (2).

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