CN215145573U

CN215145573U - Gas protection mouth and have its gas protection and weld welder

Info

Publication number: CN215145573U
Application number: CN202121304648.XU
Authority: CN
Inventors: 冯消冰; 陈子胥; 孙方虎; 汪正伟
Original assignee: Beijing Bo Tsing Technology Co Ltd
Current assignee: Beijing Bo Tsing Technology Co Ltd
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2021-12-14
Anticipated expiration: 2031-06-10

Abstract

The utility model provides a gas shielded arc welding welder that gas protection mouth and have it, include: the nozzle body is provided with a first end and a second end which are oppositely arranged, the first end of the nozzle body is used for being connected with a welding gun, and the nozzle body is provided with a first through hole; the nozzle head is provided with a first end and a second end which are oppositely arranged, the nozzle head is provided with a second through hole, a notch is arranged on the end face of the first end of the nozzle head, the notch extends along the axial direction of the nozzle head, the first end of the nozzle head extends into the inside of the second end of the nozzle body and is connected with the nozzle body in a matched mode, and the first through hole is communicated with the second through hole. Adopt this technical scheme to solve the problem that split type protection mouth among the prior art can't satisfy the connection requirement.

Description

Gas protection mouth and have its gas protection and weld welder

Technical Field

The utility model relates to a gas protection field particularly, relates to a gas protection mouth and have its gas protection and weld welder.

Background

The gas protection nozzle is arranged at the head of the gas shield welding gun and isolates air through specified high-pressure gas so as to protect a molten pool from being polluted by air during welding and further improve the welding quality. The solder can splash and glue in the front end of gas protection mouth during welding, and then influences gaseous flow, reduces the protection effect, so gas protection mouth need carry out the periodic replacement, if the gas protection mouth is changed wholly, can cause the material extravagant and improve the cost. In the existing split type gas protection nozzle, the nozzle body and the nozzle head are connected by adopting threads or different materials. When the thread connection is adopted, the thread is easy to damage due to high temperature generated in the using process of the welding gun, and then the nozzle body or the nozzle head is difficult to separate and connect. When the different materials are adopted for connection, the nozzle body and the nozzle head have different thermal deformation, and the loose connection or the loose connection and the loose separation of the connection parts are easily caused during welding. Therefore, the existing split type gas protection nozzle cannot meet the connection requirement.

SUMMERY OF THE UTILITY MODEL

The utility model provides a gas protection mouth and have its gas protection and weld welder to the problem that can't satisfy the connection requirement when solving split type protection mouth among the prior art and receiving the thermal energy.

According to an aspect of the utility model, a gas protection mouth is provided, include: the nozzle body is provided with a first end and a second end which are oppositely arranged, the first end of the nozzle body is used for being connected with a welding gun, and the nozzle body is provided with a first through hole; the nozzle head is provided with a first end and a second end which are oppositely arranged, the nozzle head is provided with a second through hole, a notch is arranged on the end face of the first end of the nozzle head, the notch extends along the axial direction of the nozzle head, the first end of the nozzle head extends into the inside of the second end of the nozzle body and is connected with the nozzle body in a matched mode, and the first through hole is communicated with the second through hole.

Furthermore, a plurality of gaps are arranged at the first end of the nozzle head and are annularly arranged along the first end of the nozzle head at intervals.

Further, a plurality of notches are evenly spaced at the first end of the tip.

Furthermore, the inner wall of the second end of the nozzle body is provided with a first annular groove, the outer wall of the first end of the nozzle head is provided with a second annular groove, and the first end of the nozzle head is positioned in the first annular groove.

Further, the depth of the notch is the same as the length of the second annular groove.

Further, the second end of the nozzle body is sized to fit the second annular groove, and/or the first end of the nozzle tip is sized to fit the first annular groove.

Furthermore, the nozzle head and the nozzle body are made of the same material.

Further, the first end of the nozzle head is connected with the second end of the nozzle body in an interference fit mode.

Further, the thickness of the gas protection nozzle at the joint of the nozzle body and the nozzle head is the same as the thickness of the middle part of the nozzle body.

According to the utility model discloses a further aspect provides a gas shielded welding welder, and gas shielded welding welder includes the gas shielded welding mouth of above-mentioned technical scheme description.

Use the technical scheme of the utility model, be provided with the breach on the terminal surface of the first end of the mouth of gas protection mouth, the breach extends along the axis direction of mouth, and the first end of mouth stretches into the inside of the second end of the mouth body and is connected with the cooperation of the mouth body. In the scheme, the notch is arranged on the nozzle head, so that the nozzle head has larger deformation amount relative to the nozzle body when being heated. Therefore, the nozzle head and the nozzle body can be tightly matched and clamped when being inserted and connected, and the nozzle head and the nozzle body are not required to be worried about expansion caused by the thermal expansion of the nozzle head. The connection effectiveness of the nozzle head and the nozzle body is guaranteed, the nozzle head and the nozzle body are convenient to disassemble and assemble, and the connection requirement of the gas protection nozzle can be met.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural view of a gas protection nozzle provided by the present invention;

FIG. 2 is a schematic view of a nozzle tip structure of the gas protection nozzle provided by the present invention;

FIG. 3 illustrates a top view of a tip of a gas protection nozzle provided by the present invention;

fig. 4 shows a schematic structural view of the mouth body of the gas protection mouth provided by the present invention.

Wherein the figures include the following reference numerals:

10. a mouth body; 11. a first end of the mouth; 12. a second end of the mouth; 13. a first through hole; 14. a first annular groove; 20. a mouth head; 21. a first end of the tip; 22. a second end of the tip; 23. a second through hole; 24. a notch; 25. a second annular groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 4, an embodiment of the present invention provides a gas protection nozzle, which includes a nozzle body 10 and a nozzle tip 20. The nozzle body 10 has a first end and a second end arranged opposite to each other, the first end 11 of the nozzle body being adapted for connection to a welding gun, the nozzle body 10 having a first through hole 13. The second end 12 of the nozzle body is connected to a nozzle tip 20. The first through hole 13 is for circulating gas. The nozzle 20 has a first end and a second end which are oppositely arranged, the nozzle 20 has a second through hole 23, a notch 24 is arranged on the end surface of the first end 21 of the nozzle, the notch 24 extends along the axial direction of the nozzle 20, the first end 21 of the nozzle extends into the second end 12 of the nozzle and is connected with the nozzle 10 in a matching way, and the first through hole 13 is communicated with the second through hole 23. The end face of the first end 21 of the nozzle head is provided with a notch 24, and after the nozzle head 20 is heated, the deformation of the first end 21 of the nozzle head is larger, so that the first end 21 of the nozzle head is clamped more tightly in the second end 12 of the nozzle body, and the nozzle head 20 and the nozzle body 10 are clamped tightly. The end surface of the first end 21 of the tip is provided with a notch 24, so that the first end 21 of the tip is easily deformed when the tip 20 is detached, thereby facilitating the detachment of the tip from the nozzle body 10.

Adopt the technical scheme of the utility model, set up breach 24 on mouth head 20, make mouth head 20 have bigger deflection for mouth body 10 when being heated, so can make the two closely cooperate the joint when mouth head 20 pegs graft with mouth body 10 to need not worry that the mouth head is heated the inflation and makes mouth head and mouth body spalling, and make things convenient for the two to carry out the dismouting when guaranteeing mouth head and mouth body coupling validity, can satisfy the connection requirement of gas protection mouth. The scheme has the advantages of simple structure, convenience in design and processing and low processing cost.

In this embodiment, the first end 21 of the tip is provided with a plurality of notches 24, and the plurality of notches 24 are annularly spaced along the first end 21 of the tip. The annular interval of the first end 21 of the nozzle head is provided with a plurality of notches 24, so that when the nozzle head 20 is heated and expanded, the deformation of the first end 21 of the nozzle head is further improved, the connection between the nozzle head 20 and the nozzle body 10 is more stable, and the first end 21 of the nozzle head can be more easily detached when the nozzle head 20 is detached.

Specifically, a plurality of notches 24 are provided at the first end 21 of the tip at regular intervals to enable the first end 21 of the tip to be deformed uniformly.

In this embodiment, the inner wall of the second end 12 of the nozzle body is provided with a first annular groove 14, the outer wall of the first end 21 of the nozzle head is provided with a second annular groove 25, and the first end 21 of the nozzle head is positioned in the first annular groove 14. Alternatively, the length of the first annular groove 14 is the same as the length of the second annular groove 25. The first annular groove 14 is matched with the second annular groove 25, when the first end 21 of the nozzle head extends into the second end 12 of the nozzle body, the thickness of the overlapping part of the first end 21 of the nozzle head and the second end 12 of the nozzle body is smaller, so that the diameters of the first through hole 13 and the second through hole 23 in the nozzle body 10 and the nozzle head 20 are close to or the same, and the obstruction of gas circulation is smaller. Optionally, the inner and outer walls of the overlapping area of the second end 12 of the nozzle body and the first end 21 of the nozzle head are smooth, so that the diameters of the through holes in the nozzle body 10 and the nozzle head 20 are kept constant, and the air circulation is smoother.

In this embodiment, the depth of the notch 24 is the same as the length of the second annular groove 25. The gas may leak from the notch 24 when the depth of the notch is greater than the length of the second annular groove 25. The depth of the notch 24 is the same as the length of the second annular groove 25, so that the structural strength of the nozzle tip 20 can be ensured while the nozzle tip 20 has a larger deformation.

In particular, the second end 12 of the nozzle body is sized to fit the second annular groove 25 and/or the first end 21 of the nozzle head is sized to fit the first annular groove 14. Optionally, the circumferential dimension of the second end 12 of the nozzle body is slightly smaller than the circumferential dimension of the second annular groove 25, and the circumferential dimension of the first end 21 of the nozzle head is slightly larger than the circumferential dimension of the first annular groove 14, so that the nozzle head 20 and the nozzle body 10 are connected more tightly. In addition, in the axial direction, the second end 12 of the nozzle body can be abutted against the side of the second annular groove 25 far away from the nozzle body 10, and the first end 21 of the nozzle head can be abutted against the side of the first annular groove 14 far away from the nozzle head 20, so that the strength and the sealing performance of the joint of the nozzle body 10 and the nozzle head 20 can be ensured. In this embodiment, the nozzle tip 20 and the nozzle body 10 are made of the same material. Since the nozzle tip 20 and the nozzle body 10 are made of the same material, the expansion coefficients of the nozzle tip 20 and the nozzle body 10 are the same. Since the temperature of the tip 20 is higher than that of the tip 10 during welding, the amount of deformation of the tip 20 is larger than that of the tip 10, and the tip 20 is more tightly caught inside the tip 10.

In this embodiment, the first end 21 of the nozzle tip is connected with the second end 12 of the nozzle body in an interference fit manner. Thereby tightly connecting the tip 20 and the mouth 10.

In this embodiment, the thickness of the gas protection nozzle at the connection position of the nozzle body 10 and the nozzle head 20 is the same as the thickness of the middle part of the nozzle body 10. The thickness of the connection between the nozzle body 10 and the nozzle tip 20 is the sum of the thicknesses of the first end 11 of the nozzle body and the second end 22 of the nozzle tip. By adopting the design, the strength of the joint of the mouth body 10 and the mouth head 20 can be ensured.

The utility model discloses still another embodiment provides a gas shielded welding welder, and gas shielded welding welder includes the gas shield mouth of above-mentioned technical scheme description. When the gas protection nozzle of the gas protection welding gun needs to be replaced, only the nozzle head 20 needs to be replaced, and materials and cost are saved.

By adopting the technical scheme of the utility model, the notch 24 is arranged on the nozzle head 20, so that the nozzle head 20 has larger deformation relative to the nozzle body 10 when being heated, and the nozzle head 20 is clamped more tightly in the nozzle body 10, and the nozzle head 20 and the nozzle body 10 can be disassembled more conveniently; when the protective nozzle of the welding gun needs to be replaced, only the nozzle head 20 needs to be replaced, so that the material and the cost are saved; the structure of the nozzle head 20 and the nozzle body 10 is simple, and the processing technology is simple.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas protection nozzle, comprising:

a nozzle body (10) having a first end and a second end arranged opposite to each other, the first end (11) of the nozzle body being adapted to be connected to a welding gun, the nozzle body (10) having a first through hole (13);

the nozzle head (20) is provided with a first end and a second end which are oppositely arranged, the nozzle head (20) is provided with a second through hole (23), a notch (24) is arranged on the end face of the first end (21) of the nozzle head, the notch (24) extends along the axial direction of the nozzle head (20), the first end (21) of the nozzle head extends into the inside of the second end (12) of the nozzle body and is matched and connected with the nozzle body (10), and the first through hole (13) is communicated with the second through hole (23).

2. A gas protection mouthpiece as claimed in claim 1, wherein the first end (21) of the mouthpiece is provided with a plurality of said indentations (24), the plurality of said indentations (24) being annularly spaced along the first end (21) of the mouthpiece.

3. A gas protection mouthpiece as claimed in claim 2, wherein a plurality of the indentations (24) are provided at the first end (21) of the mouthpiece at regular intervals.

4. A gas protection mouthpiece according to claim 1, wherein the inner wall of the second end (12) of the mouthpiece is provided with a first annular groove (14), the outer wall of the first end (21) of the mouthpiece is provided with a second annular groove (25), and the first end (21) of the mouthpiece is located within the first annular groove (14).

5. A gas protection mouth according to claim 4, characterized in that the depth of said gap (24) is the same as the length of said second annular groove (25).

6. A gas protection mouthpiece according to claim 4, wherein the second end (12) of the mouthpiece is dimensioned to fit the dimensions of the second annular groove (25) and/or the first end (21) of the mouthpiece is dimensioned to fit the dimensions of the first annular groove (14).

7. A gas protection mouthpiece according to claim 1, wherein the mouthpiece (20) and the mouthpiece (10) are made of the same material.

8. A gas protection mouthpiece according to claim 1, wherein the first end (21) of the mouthpiece is connected to the second end (12) of the mouthpiece by an interference fit.

9. A gas protection mouthpiece according to claim 1, wherein the thickness of the mouthpiece at the junction of the mouthpiece body (10) and the mouthpiece head (20) is the same as the thickness of the middle portion of the mouthpiece body (10).

10. A gas shielded welding torch comprising a gas shielded nozzle according to any one of claims 1 to 9.