CN115971716A - Resistance welding nut and end cone assembly - Google Patents
Resistance welding nut and end cone assembly Download PDFInfo
- Publication number
- CN115971716A CN115971716A CN202111205377.7A CN202111205377A CN115971716A CN 115971716 A CN115971716 A CN 115971716A CN 202111205377 A CN202111205377 A CN 202111205377A CN 115971716 A CN115971716 A CN 115971716A
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- China
- Prior art keywords
- extension
- nut
- end cone
- outer ring
- welding
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- Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
Abstract
The utility model provides a resistance welding nut, its includes the main part, to one side protrusion the first extension of main part and to the protrusion of opposite side the second extension of main part, resistance welding nut is including running through first extension the main part and the mounting hole of second extension, the periphery of first extension is equipped with the external screw thread, the main part is including the outer ring welding portion that is located its bottom, the second extension is including extending the protrusion the inner ring welding portion of outer ring welding portion, the inner ring welding portion is located the inboard of outer ring welding portion. The invention also discloses an end cone assembly with the electric resistance welding nut. Compared with the prior art, the resistance welding nut and the end cone assembly comprise the outer ring welding part and the inner ring welding part, so that the welding airtightness is improved.
Description
Technical Field
The invention relates to a resistance welding nut and an end cone assembly, and belongs to the technical field of engine exhaust systems.
Background
Existing end cone assemblies typically include an end cone and a nut mounted on the end cone to mount the sensor. However, how to achieve the connection of the nut and the end cone is crucial. If the problems of air leakage and the like occur, the detection precision of the sensor is influenced if the air leakage and the like occur, and the problem of discharge occurs if the air leakage and the like occur if the air leakage and the like.
Disclosure of Invention
The invention aims to provide a resistance welding nut with good welding airtightness and an end cone assembly.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a resistance welding nut, its includes the main part, to one side protrusion the first extension of main part and to the protrusion of opposite side the second extension of main part, resistance welding nut is including running through first extension the main part and the mounting hole of second extension, the periphery of first extension is equipped with the external screw thread, the main part is including the outer ring welding portion that is located its bottom, the second extension is including extending the protrusion the inner ring welding portion of outer ring welding portion, the inner ring welding portion is located the inboard of outer ring welding portion.
As a further improved aspect of the present invention, the inner ring welding portion includes a tapered welding surface at an outer periphery.
As a further improved technical solution of the present invention, the main body portion includes a bottom surface and an annular recessed portion recessed from the bottom surface toward the first extension portion, and the annular recessed portion is located inside the outer ring welding portion.
As a further improved aspect of the present invention, the inner ring welding portion is located inside the annular recessed portion.
As a further improved technical solution of the present invention, the width of the main body portion is greater than the width of the first extension portion.
As a further improved technical solution of the present invention, the width of the main body portion is greater than the width of the second extension portion.
As a further improved technical scheme of the invention, the mounting hole is a stepped hole.
As a further improved technical scheme of the invention, the main body part also comprises an annular groove which is positioned at the outer side and used for relieving welding deformation.
The invention also discloses an end cone assembly which comprises an end cone and the resistance welding nut welded and fixed on the end cone, wherein the end cone comprises a shell, the shell comprises a through hole for mounting the resistance welding nut and an inner wall surface exposed in the through hole, the resistance welding nut is the resistance welding nut, the inner ring welding part is at least partially inserted into the through hole, and the inner ring welding part is welded and fixed with the inner wall surface to form a first seal; the outer ring welding part is welded and fixed with the shell to form a second seal.
As a further improved technical solution of the present invention, the outer ring welding portion is supported on the housing.
Compared with the prior art, the resistance welding nut and the end cone assembly comprise the outer ring welding part and the inner ring welding part, so that the welding airtightness is improved.
Drawings
FIG. 1 is a perspective view of an end cone assembly of the present invention in one embodiment.
Fig. 2 isbase:Sub>A schematic sectional view taken along linebase:Sub>A-base:Sub>A in fig. 1.
Fig. 3 is an exploded view of fig. 2.
Detailed Description
Embodiments of the invention will be described in detail below with reference to the drawings, wherein features of the embodiments, if any, may be combined with each other without conflict. When the description refers to the accompanying drawings, the same numbers or symbols in different drawings represent the same or similar elements unless otherwise specified. The statements made in the following exemplary embodiments do not represent all embodiments of the invention, but rather they are merely examples of products consistent with the invention as recited in the claims.
The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. It should be understood that the terms "first," "second," and the like, as used in the description and in the claims of the invention, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.
Referring to fig. 1 to 3, the present invention discloses an end cone assembly 100, which includes an end cone 1 and an electric resistance welding nut 2 welded and fixed on the end cone 1. The end cone 1 includes a housing 11, and the housing 11 includes a through hole 111 for mounting the resistance welding nut 2 and an inner wall surface 112 exposed in the through hole 111.
The resistance welding nut 2 includes a body portion 20, a first extending portion 21 that protrudes from the body portion 20 toward one side, and a second extending portion 22 that protrudes from the body portion 20 toward the other side. The resistance welding nut 2 includes a mounting hole 23 penetrating the first extending portion 21, the body portion 20, and the second extending portion 22. In the illustrated embodiment of the present invention, the mounting hole 23 is a stepped hole.
The outer circumference of the first extension 21 is provided with an external thread 211.
The body portion 20 includes an outer ring weld 201 at the bottom thereof. The main body portion 20 includes a bottom surface 202 and an annular recessed portion 203 recessed from the bottom surface 202 toward the first extending portion 21, and the annular recessed portion 203 is located inside the outer ring welding portion 201. The width of the main body portion 20 is greater than the width of the first extension portion 21. The width of the main body portion 20 is greater than the width of the second extension portion 22. The main body 20 further includes an annular groove 204 located on the outer side for alleviating welding deformation, thereby improving the yield of the external thread 211 after welding.
The second extension 22 includes an inner ring welding portion 221 extending to protrude the outer ring welding portion 201, and the inner ring welding portion 221 is located inside the outer ring welding portion 201. Specifically, the inner ring weld 221 is located inside the annular recess 203. In the illustrated embodiment of the present invention, the inner ring weld 221 includes a tapered weld surface 222 at the outer periphery.
The inner ring weld portion 221 is at least partially inserted into the through hole 111, and the tapered weld surface 222 can function as a self-positioning, thereby facilitating the assembly of the resistance weld nut 2. The inner ring welding part 221 is welded and fixed with the inner wall surface 112 to form a first seal; the outer ring welding portion 201 is welded and fixed to the upper surface of the housing 11 to form a second seal. In the illustrated embodiment of the present invention, the outer ring-welded portion 201 is supported on the upper surface of the housing 11.
Compared with the prior art, the electric resistance welding nut 2 and the end cone assembly 100 comprise the outer ring welding part 201 and the inner ring welding part 221, and welding airtightness is improved through double-layer sealing.
The above embodiments are only for illustrating the invention and not for limiting the technical solutions described in the invention, and the understanding of the present description should be based on the technical personnel in the field, and although the present invention has been described in detail by referring to the above embodiments, the technical personnel in the field should understand that the technical personnel in the field can still make modifications or equivalent substitutions to the present invention, and all technical solutions and modifications thereof without departing from the spirit and scope of the present invention should be covered in the claims of the present invention.
Claims (10)
1. The utility model provides a resistance welding nut, its characterized in that includes the main part, to one side protrusion the first extension of main part and to the protrusion of opposite side the second extension of main part, resistance welding nut is including running through the mounting hole of first extension the main part and the second extension, the periphery of first extension is equipped with the external screw thread, the main part is including the outer ring welding portion that is located its bottom, the second extension is including extending the protrusion the inner ring welding portion of outer ring welding portion, the inner ring welding portion is located the inboard of outer ring welding portion.
2. A resistance weld nut as defined in claim 1, wherein: the inner ring weld includes a tapered weld face at an outer periphery.
3. A resistance weld nut as defined in claim 1, wherein: the main body portion comprises a bottom surface and an annular concave portion formed by the bottom surface in a concave mode towards the first extending portion, and the annular concave portion is located on the inner side of the outer ring welding portion.
4. A resistance weld nut as defined in claim 3, wherein: the inner ring welding part is positioned on the inner side of the annular concave part.
5. A resistance weld nut as defined in claim 1, wherein: the width of the main body part is larger than that of the first extension part.
6. A resistance weld nut as defined in claim 1, wherein: the width of the main body part is larger than that of the second extension part.
7. A resistance weld nut as defined in claim 1, wherein: the mounting hole is a stepped hole.
8. A resistance weld nut as defined in claim 1, wherein: the main body portion further comprises an annular groove located on the outer side and used for relieving welding deformation.
9. An end cone assembly comprising an end cone and an electric resistance weld nut welded to the end cone, the end cone comprising a housing, the housing comprising a through bore for mounting the electric resistance weld nut and an inner wall surface exposed within the through bore, wherein the electric resistance weld nut is as claimed in any one of claims 1 to 8, the inner ring weld is at least partially inserted into the through bore, and the inner ring weld is welded to the inner wall surface to form a first seal; the outer ring welding part is welded and fixed with the shell to form a second seal.
10. The end cone assembly of claim 9 wherein: the outer ring weld is supported on the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111205377.7A CN115971716A (en) | 2021-10-15 | 2021-10-15 | Resistance welding nut and end cone assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111205377.7A CN115971716A (en) | 2021-10-15 | 2021-10-15 | Resistance welding nut and end cone assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115971716A true CN115971716A (en) | 2023-04-18 |
Family
ID=85963517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111205377.7A Pending CN115971716A (en) | 2021-10-15 | 2021-10-15 | Resistance welding nut and end cone assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115971716A (en) |
-
2021
- 2021-10-15 CN CN202111205377.7A patent/CN115971716A/en active Pending
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