Universal welding shielding gas reducing insulating nozzle

Abstract

The utility model discloses a universal welding shielding gas reducing insulation nozzle which comprises a first cylinder, a circular truncated cone cylinder and a second cylinder which are coaxially arranged, and the outer diameter of the first cylinder is larger than that of the second cylinder. The large head end of the circular truncated cone cylinder is fixedly connected with one end of the first cylinder, and the inner side wall of the small head end of the circular truncated cone cylinder is in threaded connection with the outer side wall of one end of the second cylinder; the inner side wall of the first cylinder is provided with internal threads used for being in threaded fit with a conducting rod. According to the utility model, the second cylinder is in threaded fit with the circular truncated cone cylinder, so that a detachable structure is formed between the second cylinder and the circular truncated cone cylinder, and when the first cylinder is damaged, only the first cylinder and the circular truncated cone cylinder are replaced, so that the structure of the nozzle part is replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding gun nozzles, and in particular relates to a universal welding shielding gas variable diameter insulating nozzle. Background Art

[0002] The tail end of the welding gun barrel of both Fronius CMT and SKS robotic welding guns is equipped with the following accessories: a conductive rod, a conductive tip, and a shielding gas nozzle. The inner wall of one end of the conductive rod is threaded into the outer wall of the welding gun barrel, while the inner wall of the other end is threaded into the outer wall of the conductive tip. One end of the shielding gas nozzle fits over the outer wall of the conductive tip and then threads into the outer wall of the conductive rod. Due to the different outer diameters of the conductive rod where it connects to the shielding gas nozzle, the shielding gas nozzle models that match these two brands are not universal. Therefore, when purchasing genuine imported spare parts, each brand of welding gun requires its own spare parts for the tail end of the welding gun barrel, resulting in high consumable costs.

[0003] However, the high cost of consumables is not conducive to localization. Therefore, in the localization process of the welding gun barrel tail accessories in these two brands of welding guns, the welding shielding gas nozzle is redesigned. In conjunction with the modification of the outer diameter of the conductive rod that matches the two brands of welding guns after localization, the outer diameter of the two conductive rods connected to the localized welding shielding gas nozzle is modified to be consistent, so that the welding shielding gas nozzle redesigned after localization can be used universally on the two brands of welding guns, so that they can be backed up for each other, thereby reducing the cost of consumables.

[0004] At the same time, considering the economic losses caused by the need to replace the entire nozzle after the end of the welding shielding gas nozzle connected to the conductive rod is damaged after localization, the present application proposes a universal welding shielding gas variable diameter insulating nozzle, which, through a detachable structural setting, only needs to be partially replaced after the end connected to the conductive rod is damaged, thereby reducing economic losses compared to overall replacement. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a universal welding shielding gas variable diameter insulating nozzle.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A universal welding shielding gas variable diameter insulating nozzle comprises a first cylinder, a frustum cylinder and a second cylinder arranged coaxially, wherein the outer diameter of the first cylinder is greater than the outer diameter of the second cylinder;

[0008] The large end of the conical cylinder is fixedly connected to one end of the first cylinder, and the inner side wall of the small end of the conical cylinder is threadedly connected to the outer side wall of one end of the second cylinder;

[0009] An internal thread for threadably engaging with the conductive rod is provided on the inner side wall of the first cylinder.

[0010] Preferably, the first cylinder comprises an outer ring portion located on the outer ring and an inner ring portion located on the inner ring, and an annular heat insulating layer is embedded between the outer ring portion and the inner ring portion;

[0011] The internal thread is arranged on the inner wall surface of the inner ring portion.

[0012] Preferably, the large end of the conical cylinder is fixedly connected to one end of the outer ring portion.

[0013] Preferably, the outer ring portion, the conical cylinder and the second cylinder are made of red copper.

[0014] Preferably, the inner ring portion is made of brass.

[0015] Preferably, the annular thermal insulation layer is made of glass fiber polyimide insulation board.

[0016] Preferably, the surfaces of the outer ring portion, the inner ring portion, the conical cylinder and the second cylinder are all chrome-plated.

[0017] The beneficial effects of the utility model are:

[0018] (1) In the present invention, the threaded fit between the second cylinder and the conical cylinder forms a detachable structure between the second cylinder and the conical cylinder. When the first cylinder is damaged, only the first cylinder and the conical cylinder can be replaced, thereby realizing the replacement of the nozzle structure.

[0019] (2) When the weld curvature is large, the outer circle of the nozzle contacts the base material. The setting of the annular thermal insulation layer can prevent the front end of the nozzle from adhering to the base material. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings in the specification, which constitute a part of this application, are used to provide further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute improper limitations on this application.

[0021] Figure 1 This is a schematic structural perspective view of the universal welding shielding gas variable diameter insulating nozzle of the utility model;

[0022] Figure 2 This is a schematic front view of the structure of the universal welding shielding gas variable diameter insulating nozzle of the utility model;

[0023] Figure 3 yes Figure 2 AA section view;

[0024] in:

[0025] 1-first cylinder, 11-outer ring portion, 12-inner ring portion, 13-annular thermal insulation layer, 101-inner thread, 2-conical cylinder, 3-second cylinder. DETAILED DESCRIPTION

[0026] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] In the present invention, the directions or positional relationships indicated by terms such as "upper", "lower", "bottom", and "top" are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention. They do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

[0029] In this utility model, terms such as "connected" and "connection" should be interpreted broadly, meaning that the connection can be fixed, integral, or detachable; it can be directly connected or indirectly connected through an intermediary. Relevant researchers or technicians in this field can determine the specific meaning of these terms in this utility model based on specific circumstances, and they should not be construed as limiting this utility model.

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] like Figure 1-Figure 3 As shown, a universal welding shielding gas variable diameter insulating nozzle includes a coaxially arranged first cylinder 1, a frustum cylinder 2, and a second cylinder 3. The outer diameter of the first cylinder 1 is larger than the outer diameter of the second cylinder 3, thereby realizing a variable diameter setting of the nozzle. The smaller diameter of the second cylinder 3 compared to the first cylinder 1 facilitates welding in narrow spaces.

[0032] The large end of the truncated cone 2 is fixedly connected to one end of the first cylinder 1, and the inner side wall of the small end of the truncated cone 2 is threadedly connected to the outer side wall of one end of the second cylinder 3. Specifically, the number of threads between the small end of the truncated cone 2 and the second cylinder 3 is 1.

[0033] An internal thread 101 for threadably engaging with a conductive rod is provided on the inner side wall of the first cylinder 1 .

[0034] In the present application, the threaded cooperation between the second cylinder 3 and the conical cylinder 2 forms a detachable structure between the second cylinder 3 and the conical cylinder 2. When the first cylinder 1 is damaged, only the first cylinder 1 and the conical cylinder 2 can be replaced, thereby realizing the replacement of the nozzle part structure.

[0035] Preferably, the first cylinder 1 comprises an outer ring portion 11 located on the outer ring and an inner ring portion 12 located on the inner ring, and an annular heat insulating layer 13 is embedded between the outer ring portion 11 and the inner ring portion 12;

[0036] The internal thread 101 is provided on the inner wall surface of the inner ring portion 12 .

[0037] When the curvature of the weld is large, the outer circle of the nozzle contacts the base material. The provision of the annular thermal insulation layer 13 can prevent the front end of the nozzle from adhering to the base material.

[0038] Preferably, the large end of the conical cylinder 2 is fixedly connected to one end of the outer ring portion 11 .

[0039] Preferably, the outer ring portion 11, the conical cylinder 2 and the second cylinder 3 are made of red copper.

[0040] Preferably, the inner ring portion 12 is made of brass.

[0041] Preferably, the annular thermal insulation layer 13 is made of glass fiber polyimide insulation board.

[0042] Preferably, the surfaces of the outer ring portion 11, the inner ring portion 12, the conical cylinder 2 and the second cylinder 3 are all chrome-plated and are not prone to rust.

[0043] When purchasing imported spare parts, the shielding gas nozzles in the welding gun barrels of Fronius CMT robotic welding guns are not interchangeable with those in the welding gun barrels of SKS robotic welding guns and need to be purchased separately.

[0044] After localization, the outer diameters of the two conductive rods are modified to be consistent, and external threads are provided to match the internal threads 101 in the nozzle of this application. The nozzles in the localized accessories of the Fronius CMT robot welding gun tube and the nozzles in the localized accessories of the SKS robot welding gun tube are interchangeable, and separate spare parts are no longer required.

[0045] In this application, the threaded connection between the second cylinder 3 and the conical cylinder 2 creates a removable structure. If the first cylinder 1 is damaged, only the first cylinder 1 and the conical cylinder 2 can be replaced, thereby enabling partial replacement of the nozzle structure. When the weld curvature is large, the outer diameter of the nozzle contacts the parent material. The provision of the annular thermal insulation layer 13 prevents the front end of the nozzle from adhering to the parent material.

[0046] Although the above describes the specific implementation methods of the present invention in conjunction with the accompanying drawings, it is not a limitation of the present invention. Those skilled in the art should understand that on the basis of the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without creative work are still within the scope of protection of the present invention.

Claims

1. A universal welding shielding gas variable diameter insulating nozzle, characterized in that: It comprises a first cylinder, a truncated cone cylinder and a second cylinder which are coaxially arranged, wherein the outer diameter of the first cylinder is larger than the outer diameter of the second cylinder; The large end of the conical cylinder is fixedly connected to one end of the first cylinder, and the inner side wall of the small end of the conical cylinder is threadedly connected to the outer side wall of one end of the second cylinder; An internal thread for threadably engaging with the conductive rod is provided on the inner side wall of the first cylinder.

2. The universal welding shielding gas variable diameter insulating nozzle according to claim 1, characterized in that: The first cylinder comprises an outer ring portion located on the outer ring and an inner ring portion located on the inner ring, and an annular heat insulating layer is embedded between the outer ring portion and the inner ring portion; The internal thread is arranged on the inner wall surface of the inner ring portion.

3. The universal welding shielding gas variable diameter insulating nozzle according to claim 2, characterized in that: The large end of the frustum tube is fixedly connected to one end of the outer ring portion.

4. The universal welding shielding gas variable diameter insulating nozzle according to claim 2, characterized in that: The outer ring portion, the frustum cylinder and the second cylinder are made of red copper.

5. The universal welding shielding gas variable diameter insulating nozzle according to claim 2, characterized in that: The inner ring portion is made of brass material.

6. The universal welding shielding gas variable diameter insulating nozzle according to claim 2, characterized in that: The annular thermal insulation layer is made of a glass fiber polyimide thermal insulation board.

7. The universal welding shielding gas variable diameter insulating nozzle according to claim 2, characterized in that: The surfaces of the outer ring portion, the inner ring portion, the truncated cone cylinder and the second cylinder are all chrome-plated.

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