Seal welding nut and vehicle

Abstract

The utility model relates to a seal welding nut and a vehicle, and the seal welding nut comprises a body which is internally provided with a threaded through hole; the cover body is arranged at one end of the threaded through hole and is in sealed connection with the body; the flange is of an annular structure, the flange is arranged at the end, away from the cover body, of the body, and the outer edge of the flange extends out of the body; and the welding nugget is constructed to be annular, the welding nugget is arranged on the outer side of the threaded through hole in the circumferential direction and located on the side, away from the cover body, of the flange, and the diameter of the welding nugget is larger than the diameter of the circumcircle of the body. The welding nugget is annular and circumferentially arranged on the outer side of the threaded through hole to seal the threaded through hole, the diameter of the welding nugget is larger than the diameter of the circumcircle of the body, that is, the welding nugget is far away from the threaded through hole, and in this way, during projection welding, it can be avoided that sparks and molten metal make contact with the internal threads, and consequently the internal threads are damaged.

Description

Technical Field

[0001] The present disclosure relates to the technical field of fasteners, and in particular, to a sealed welding nut and a vehicle. Background Art

[0002] The quality of projection welding of nuts directly affects their subsequent assembly, commissioning and overall performance of the product. Due to factors such as high welding current, vaporization of the coating, and high pressure on the electrode head, spatter will be generated, and molten metal and sparks will often splash onto the inner thread surface of the nut, causing the thread to be unqualified or even fail, leading to subsequent assembly problems. Utility Model Content

[0003] The purpose of the present disclosure is to provide a sealed weld nut and a vehicle, which can solve the above-mentioned technical problems.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides a sealed welding nut, comprising: a body, in which a threaded through hole is opened; a cover body, which is arranged at one end of the threaded through hole and is sealed and connected to the body; a flange, which is constructed in an annular shape, and the flange is arranged at one end of the body away from the cover body and the outer edge of the flange extends out of the body; and a welding nugget, which is constructed in an annular shape, and the welding nugget is circumferentially arranged on the outside of the threaded through hole and is located on the side of the flange away from the cover body, and the diameter of the welding nugget is larger than the diameter of the circumscribed circle of the body.

[0005] Optionally, the flange is circumferentially arranged outside one end of the body along the center line of the body, the flange has a welding surface and the welding surface is flush with the end surface of the body away from the cover body, and the welding nugget is arranged on the welding surface.

[0006] Optionally, the cover body is constructed in a hemispherical shape, and the plane end of the hemispherical shape is sealed and connected to the body.

[0007] Optionally, the diameter of the cover body is larger than the diameter of the threaded through hole and smaller than the diameter of the circumscribed circle of the body.

[0008] Optionally, a connecting edge is provided on the hemispherical plane end along the circumference for welding with the body.

[0009] Optionally, the body and the flange are integrally formed, and the body and the flange are made of cold-headed steel.

[0010] Optionally, the cover is made of cold-rolled steel or carbon steel.

[0011] Optionally, an anti-corrosion layer is provided on the outer side of the sealing welding nut.

[0012] Optionally, the sealing weld nut is used to be arranged in a cavity of a reinforcement beam of a floor panel.

[0013] A second object of the present disclosure is to provide a vehicle, comprising: the above-mentioned sealed welding nut.

[0014] Through the above technical scheme, in the sealed welding nut provided by the present invention, a threaded through hole is opened inside the body for connecting bolts, a cover body is arranged at one end of the body to seal one end of the threaded through hole, and a flange is arranged at the other end of the body. The flange is used to combine with the assembly surface, and an opening corresponding to the threaded through hole is arranged at the center of the flange. The outer edge of the flange extends out of the body. On the one hand, it can increase the contact area with the assembly surface to increase the stability of the sealed welding nut, and on the other hand, it is used to set a welding nugget. The welding nugget is annular and circumferentially arranged on the outside of the threaded through hole to seal the threaded through hole, and the diameter of the welding nugget is larger than the circumscribed circle diameter of the body, that is, the welding nugget is kept away from the threaded through hole. In such convex welding, sparks and molten metal can be prevented from contacting the internal thread and causing damage to the internal thread.

[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0017] Figure 1 is a schematic diagram of the structure of the sealed welding nut in the present disclosure;

[0018] Figure 2 is a front view of a sealed weld nut in the present disclosure;

[0019] Figure 3 is a cross-sectional view of a sealed weld nut in the present disclosure;

[0020] Figure 4 is a front view of the main body in the present disclosure;

[0021] Figure 5 is a cross-sectional view of a body in the present disclosure;

[0022] Figure 6 is a cross-sectional view of a cover body in the present disclosure;

[0023] Figure 7 is a schematic diagram of the installation of the sealed welding nut in the present disclosure;

[0024] Figure 8 is an installation cross-sectional view of the sealed weld nut in the present disclosure.

[0025] Description of Reference Numerals

[0026] 1. Main body; 11. Threaded through hole; 2. Cover; 21. Connecting edge; 3. Flange; 31. Welding surface; 4. Welding nugget; 5. Assembly surface; 6. Floor panel; 7. Reinforcement beam. DETAILED DESCRIPTION

[0027] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0028] In the present disclosure, unless otherwise specified, the directional words used, such as "inside" and "outside", refer to the inside and outside relative to the outline of the component or structure itself. In addition, in the description with reference to the drawings, the same reference numerals in different drawings represent the same elements.

[0029] The present disclosure provides a sealed welding nut, comprising: a body 1, in which a threaded through hole 11 is opened; a cover body 2, which is arranged at one end of the threaded through hole 11 and is sealed with the body 1; a flange 3, which is constructed in an annular shape, and the flange 3 is arranged at one end of the body 1 away from the cover body 2, and the outer edge of the flange 3 extends out of the body 1; and a welding nugget 4, which is constructed in an annular shape, and the welding nugget 4 is circumferentially arranged on the outside of the threaded through hole 11 and located on the side of the flange 3 away from the cover body 2, and the diameter of the welding nugget 4 is larger than the diameter of the circumscribed circle of the body 1.

[0030] Through the above technical scheme, in the sealed welding nut provided by the present invention, a threaded through hole 11 is opened inside the body 1 for connecting bolts, for example, the threaded through hole 11 is axially arranged at the center of the body 1, the cover body 2 is arranged at one end of the body 1 to seal one end of the threaded through hole 11, and the flange 3 is arranged at the other end of the body 1, the flange 3 is used to combine with the assembly surface 5, the flange 3 is constructed in an annular shape, and the center of the flange 3 is provided with an opening corresponding to the threaded through hole 11, and the outer edge of the flange 3 extends out of the body 1. On the one hand, it can increase the contact area with the assembly surface 5 to increase the stability of the sealed welding nut, and on the other hand, it is used to set the welding nugget 4, the welding nugget 4 is annular, and is circumferentially arranged on the outside of the threaded through hole 11 to seal the threaded through hole 11 to achieve the effect of sealing welding, and the diameter of the welding nugget 4 is larger than the circumscribed circle diameter of the body 1, that is, the welding nugget 4 is kept away from the threaded through hole 11, so that during projection welding, sparks and molten metal can be prevented from contacting the internal thread to cause damage to the internal thread. Projection welding is to conduct current through electrodes. The welding nugget 4 is rapidly heated to melt under the action of the current and is crushed under the pressure of the electrode so that the body 1 forms a metallurgical bond with the metal sheet. The processing speed of projection welding is fast and there is no other consumption except electricity.

[0031] As an optional implementation, Figure 2-5As shown, the flange 3 is circumferentially arranged on the outside of one end of the body 1 along the center line of the body 1, the flange 3 has a welding surface 31 and the welding surface 31 is flush with the end surface of the body 1 away from the cover 2, and the welding nugget 4 is arranged on the welding surface 31, that is, the flange 3 is arranged around the body 1 and is located within the range of the body 1, rather than protruding from the body 1. This arrangement allows the internal thread in the threaded through hole 11 to extend to the welding surface 31, making it easier to install when connecting bolts, and extending the length of the internal thread to make the bolt installation more secure. If the flange 3 is only installed at the end of the body 1, the through hole of the flange 3 is not a threaded hole. Of course, in other embodiments, the flange 3 is arranged at the end of the body 1 and protrudes outside the body 1. If the internal thread is to extend to the welding surface 31, the internal thread needs to be processed in the through hole of the flange 3.

[0032] As an optional implementation, Figure 1-3 and Figure 6 As shown, the cover body 2 can be constructed into any suitable shape, such as a rectangle, a cone, etc. For example, in the present disclosure, the cover body 2 is constructed into a hemispherical shape, and the planar end of the hemispherical shape is sealed and connected to the main body 1. The hemispherical shape can reduce interference with other surrounding components.

[0033] Alternatively, if Figure 1-3 As shown, the diameter of the cover body 2 is larger than the diameter of the threaded through hole 11 and smaller than the circumscribed circle diameter of the main body 1. The diameter of the cover body 2 is larger than the diameter of the threaded through hole 11 to ensure that the threaded through hole 11 is sealed, and smaller than the circumscribed circle diameter of the main body 1 to prevent the cover body 2 from extending outside the main body 1 and hindering the installation of the nut.

[0034] Alternatively, if Figure 6 As shown, a connecting edge 21 is provided on the circumferential direction of the hemispherical flat end for welding with the main body 1. The cover body 2 and the main body 1 are two separate parts connected together by welding. Separate processing is easier to process and has lower costs. If a part is defective during the processing, there is no need to discard the entire nut. The connecting edge 21 is set at the edge of the flat end and extends beyond the flat end to increase the contact area with the main body 1, so that the connection between the cover body 2 and the main body 1 is tighter and the sealing is improved.

[0035] As an optional embodiment, the main body 1 and the flange 3 can be made of any suitable material. For example, in the present disclosure, the main body 1 and the flange 3 are integrally arranged, and the main body 1 and the flange 3 are made of cold heading steel. The main body 1 and the flange 3 are cold headed, and the process is simple and the manufacturing cost is low. Due to the influence of the process, the material of the main body 1 and the flange 3 is selected from cold heading steel, for example, the cold heading steel is 10B21 material, 10B21 is an American standard material, the grade of carbon steel material, and the general name is boron steel, also called cold heading steel.

[0036] As an optional embodiment, the cover body 2 can be made of any suitable material. For example, in the present disclosure, the cover body 2 is made of cold-rolled steel or carbon steel. The cover body 2 is formed by cold stamping, which has a simple process and low manufacturing cost. Affected by the process, the material needs to be a metal sheet suitable for cold stamping, so cold-rolled steel or carbon steel is selected. For example, the cold-rolled steel is DC01 material, DC01 is a cold-rolled steel plate, DC01 is a European standard, equivalent to GB15675-95; carbon steel is A3 material, A3 material is the term in the old standard GB / T700, equivalent to Q235 in the new standard GB221-79, and its carbon content is moderate, and it has good coordination in strength, plasticity and welding performance, and is relatively excellent in terms of comprehensive performance. The main body 1 and the cover body 2 are made of different materials and processed separately according to different processes. Compared with an integrated setting, the cost and process difficulty can be reduced.

[0037] As an optional embodiment, an anti-corrosion layer is provided on the outside of the sealed weld nut. Since the sealed weld nut usually contacts the wet area, an anti-corrosion layer is required to improve its own anti-corrosion performance, such as electro-galvanizing or electro-galvanizing nickel treatment to form the anti-corrosion layer.

[0038] As an optional implementation, Figure 7-8 As shown, the sealed welding nut is used to be set in the cavity of the reinforcing beam 7 of the floor panel 6. The reinforcing beam 7 is set on the side of the floor panel 6 facing the ground. The reinforcing beam 7 needs to be connected to the floor panel 6 by bolts, and a sealed connection is required to isolate the inside of the floor panel 6 from the outside. Because the cavity space of the reinforcing beam 7 is narrow, the sealant is not easy to operate, and it can only be sealed after welding the sealed welding nut and the reinforcing beam 7. That is, the sealed welding nut in the present disclosure can be suitable for narrow spaces, and the assembly surface 5 in the cavity that contacts the sealed welding nut is a metal surface for welding.

[0039] The second object of the present disclosure is to provide a vehicle, including: the above-mentioned sealed welding nut, which can isolate the vehicle's floor panel 6 from the outside and meet the sealing requirements of the floor panel 6. The sealed welding nut in the present disclosure can avoid sparks and molten metal from contacting the internal thread and causing damage to the internal thread during projection welding.

[0040] In actual use, the sealed welding nut is welded to the assembly surface 5 by a projection welding machine. The two electrodes of the projection welding machine clamp the sealed welding nut on the assembly surface 5 and fix it at the screw hole of the assembly surface 5 by a locating pin. The electrodes are energized to heat the welding core 4 to melt, and it is crushed under the pressure of the electrodes so that the sealed welding nut forms a metallurgical bond with the metal assembly surface 5.

[0041] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0042] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0043] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A sealed welding nut, characterized in that: include: A body having a threaded through hole therein; A cover body, disposed at one end of the threaded through hole and sealedly connected to the body; A flange, which is in an annular shape, is disposed at one end of the body away from the cover body and the outer edge of the flange extends out of the body; as well as The welding nugget is constructed in an annular shape, and the welding nugget is circumferentially arranged outside the threaded through hole and located on a side of the flange away from the cover body, and the diameter of the welding nugget is greater than the diameter of the circumscribed circle of the body.

2. The sealed welding nut according to claim 1, characterized in that: The flange is circumferentially arranged outside one end of the body along the center line of the body, the flange has a welding surface and the welding surface is flush with the end surface of the body away from the cover body, and the welding nugget is arranged on the welding surface.

3. The sealed welding nut according to claim 1 or 2, characterized in that: The cover body is constructed in a hemispherical shape, and a plane end of the hemispherical shape is sealed and connected to the body.

4. The sealed welding nut according to claim 3, characterized in that: The diameter of the cover body is larger than the diameter of the threaded through hole and smaller than the circumscribed circle diameter of the body.

5. The sealed welding nut according to claim 3, characterized in that: A connecting edge is provided on the hemispherical plane end along the circumferential direction for welding with the body.

6. The sealed weld nut according to claim 1, characterized in that: The body and the flange are integrally arranged, and the body and the flange are made of cold-headed steel.

7. The sealed weld nut according to claim 1, characterized in that: The cover body is made of cold-rolled steel or carbon steel.

8. The sealed weld nut according to claim 1, characterized in that: An anti-corrosion layer is provided on the outer side of the sealing welding nut.

9. The sealed weld nut according to claim 1, characterized in that: The sealed weld nut is used to be arranged in the cavity of the reinforcement beam of the floor panel.

10. A vehicle, characterized in that: include: A sealed weld nut according to any one of claims 1 to 9.

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