CN213270629U

CN213270629U - Solve fastener of insulating effect of paint film

Info

Publication number: CN213270629U
Application number: CN202021909491.9U
Authority: CN
Inventors: 陈彧; 郝大陆; 王明辉; 杨小冬; 段洪
Original assignee: Huayu Automotive Body Components Technology Shanghai Co Ltd
Current assignee: Huayu Automotive Body Components Technology Shanghai Co Ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-05-25
Anticipated expiration: 2030-09-04

Abstract

The utility model belongs to the technical field of the fastener technique and specifically relates to a solve fastener of film insulation effect. The utility model provides a solve fastener of insulating effect of paint film, includes riveting pole, flange head, tail section, its characterized in that: the head of the riveting rod is connected with the flange head, the tail of the riveting rod is connected with the tail section, the outer edge of the upper end face of the flange head is provided with a ring-shaped spine structure, and the riveting rod, the flange head, the tail section and the ring-shaped spine structure are integrated. Compared with the prior art, the fastener for solving the insulation effect of the paint film is low in cost, high in efficiency, capable of achieving functions during connection and free of special equipment.

Description

Solve fastener of insulating effect of paint film

Technical Field

The utility model belongs to the technical field of the fastener technique and specifically relates to a solve fastener of film insulation effect.

Background

With the gradual maturity of the development of new energy automobiles in China, the corresponding production and manufacturing cost is further reduced. Along with the rapid development of new energy automobiles in China, the requirements for light weight and energy density of a battery pack are higher and higher, high-strength steel has unique light weight potential, and accordingly, a steel battery shell is widely applied. However, since steel itself is not corrosion resistant, surface treatment is required, and at present, cathodic electrophoresis is mainly used. The existing assembly mode for solving the insulating effect of a surface paint film mainly comprises shielding during coating, polishing after coating, scraping by special tools and the like, and the processing modes mostly require extra special equipment besides high cost and have low production efficiency and cannot meet the requirement of mass production of the whole vehicle.

Disclosure of Invention

The utility model discloses an overcome prior art not enough, provide a solve fastener of film insulation effect, the fastener is with low costs, can realize the function when efficient, connect, need not special equipment.

In order to realize the above-mentioned purpose, design a solve fastener of film insulation effect, including riveting pole, flange head, tail section, its characterized in that: the head of the riveting rod is connected with the flange head, the tail of the riveting rod is connected with the tail section, the outer edge of the upper end face of the flange head is provided with a ring-shaped spine structure, and the riveting rod, the flange head, the tail section and the ring-shaped spine structure are integrated.

The section angle alpha of the point of the annular point structure is less than or equal to 10 degrees, and the range of the height of the point head of the annular point structure is less than or equal to 0.35mm and less than or equal to L1 and less than or equal to 0.5 mm.

The section angle of the sharp of the annular sharp structure is alpha =8 degrees, and the height of the sharp head of the annular sharp structure is L1=0.45 mm.

The flange head is of a disc-shaped structure.

The riveting rod is of a cylindrical structure, and a plurality of waist-shaped planes are arranged on the outer side surface of the riveting rod.

The tail section is of a cylindrical structure.

The diameter of the flange head is larger than that of the rivet rod, and the diameter of the rivet rod is larger than that of the tail section.

The diameter D1 of the flange head is more than or equal to 12.5 mm; the distance L2 between the opposite sides of the riveting rod is less than or equal to 9 mm; and the outer chamfer angle C of the tail section is less than or equal to 0.2 mm.

The diameter D1=14mm of the flange head; the distance L2=8.9mm between the opposite sides of the riveting rod; and the outer chamfer C =0.1mm of the tail section.

Compared with the prior art, the utility model, a solve fastener of film insulation effect is provided, the fastener is with low costs, can realize the function, need not special equipment when efficient, connect.

Drawings

Fig. 1 is a perspective view of the structure of the present invention.

Fig. 2 is a sectional view of the structure of the present invention.

Fig. 3 is a schematic view of the present invention in use.

Referring to fig. 1, fig. 3, 1 is a ring-shaped spine structure, 2 is a flange head, 3 is a riveting rod, 4 is a tail section, 5 is a mounted plate, 6 is a paint film, 7 is a material plate, and 8 is collapsing deformation.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

As shown in fig. 1 to 3, the head of the rivet rod 3 is connected to the flange head 2, the tail of the rivet rod 3 is connected to the tail section 4, the annular spike structure 1 is disposed at the outer edge of the upper end face of the flange head 2, and the rivet rod 3, the flange head 2, the tail section 4 and the annular spike structure 1 are integrated.

The section angle alpha of the point of the annular point structure 1 is less than or equal to 10 degrees, and the range of the height of the point head of the annular point structure 1 is more than or equal to 0.35mm and less than or equal to L1 and less than or equal to 0.5 mm.

The section angle α =8 ° of the ring-shaped spike structure 1, and the height L1=0.45mm of the spike head of the ring-shaped spike structure 1.

The flange head 2 is of a disc-shaped structure.

The riveting rod 3 is of a cylindrical structure, and a plurality of waist-shaped planes are arranged on the outer side surface of the riveting rod 3.

The tail section 4 is of cylindrical configuration.

The diameter of the flange head 2 is larger than that of the riveting rod 3, and the diameter of the riveting rod 3 is larger than that of the tail section 4.

The diameter D1 of the flange head 2 is more than or equal to 12.5 mm; the distance L2 between the opposite sides of the riveting rod 3 is less than or equal to 9 mm; the outer chamfer C of the tail section 4 is less than or equal to 0.2 mm.

The diameter D1=14mm of the flange head 2; the distance L2=8.9mm between the opposite sides of the riveting rod 3; the outer side chamfer C =0.1mm of the tail section 4, the inner side chamfer is tangent to the cavity arc surface, and the optimal shape ensures that the punching force is effectively transmitted to the contact surface of the rivet and the plate, so that the rivet is pushed to penetrate through the plate.

The end face of the flange head 2 is provided with an annular spine structure 1 which has a certain taper and is convenient to pierce a paint film; the riveting rod 3 and the tail section 4 have no great difference with the traditional riveting nut.

The utility model discloses a structure realized with the assembly of taking paint coating part, with metal material's fastening assembly, when having the scene that does not need insulating, can realize non-insulating connection.

When the annular spine structure 1 is assembled by fastening a matched bolt, under the condition of rated assembly torque, two sides generate pressing force mutually, and finally a surface paint film of an assembled part is pierced; preferably, in the initial welding stage, the tip of the welding head is melted by heating and the impurities are pushed to the edge under the action of the forging force.

As shown in fig. 3, the mode of action at the time of assembly is expressed as follows: in the assembling stage, the bolt locks the plate 7, the fastener compresses the mounted plate 5 under the action of tightening force, the riveting rod 3 generates collapse deformation 8, and the annular sharp-pointed structure 1 on the end face of the flange head 2 punctures the paint film 6.

Based on the common rivet pulling and riveting equipment in the existing part production, the rivet nut is connected with the body part, and the paint film on the surface of the hand piece is punctured by using the sharp prick at the end part of the nut flange in the later assembling process.

Claims

1. The utility model provides a solve fastener of insulating effect of paint film, includes riveting pole, flange head, tail section, its characterized in that: the head of the riveting rod (3) is connected with the flange head (2), the tail part of the riveting rod (3) is connected with the tail section (4), the outer edge of the upper end face positioned on the flange head (2) is provided with a ring-shaped spine structure (1), and the riveting rod (3), the flange head (2), the tail section (4) and the ring-shaped spine structure (1) are of an integrated structure.

2. The fastener for solving the paint film insulation effect as claimed in claim 1, wherein: the section angle alpha of the sharp point of the annular sharp point structure (1) is less than or equal to 10 degrees, and the height range of the sharp point of the annular sharp point structure (1) is more than or equal to 0.35mm and less than or equal to L1 and less than or equal to 0.5 mm.

3. A fastener for solving the paint film insulation effect as claimed in claim 1 or 2, wherein: the section angle alpha of the sharp point of the annular sharp point structure (1) is =8 degrees, and the height L1 of the sharp point of the annular sharp point structure (1) is =0.45 mm.

4. The fastener for solving the paint film insulation effect as claimed in claim 1, wherein: the flange head (2) is of a disc-shaped structure.

5. The fastener for solving the paint film insulation effect as claimed in claim 1, wherein: the riveting rod (3) is of a cylindrical structure, and a plurality of waist-shaped planes are arranged on the outer side surface of the riveting rod (3).

6. The fastener for solving the paint film insulation effect as claimed in claim 1, wherein: the tail section (4) is of a cylindrical structure.

7. The fastener for solving the paint film insulation effect as claimed in claim 1, wherein: the diameter of the flange head (2) is larger than that of the riveting rod (3), and the diameter of the riveting rod (3) is larger than that of the tail section (4).

8. A fastener for solving the paint film insulation effect as claimed in claim 1 or 7, wherein: the diameter D1 of the flange head (2) is more than or equal to 12.5 mm; the distance L2 between the opposite sides of the riveting rod (3) is less than or equal to 9 mm; the outer chamfer C of the tail section (4) is less than or equal to 0.2 mm.

9. A fastener for solving the paint film insulation effect as claimed in claim 1 or 7, wherein: the diameter D1=14mm of the flange head (2); the distance L2=8.9mm between the opposite sides of the riveting rod (3); and the outer side chamfer C =0.1mm of the tail section (4).