Special single-drum type self-plugging rivet for pedal longitudinal beam of new energy automobile

Abstract

The utility model discloses a special single-drum type self-plugging rivet for a longitudinal beam of a pedal of a new energy automobile, which comprises a rivet body and a rivet core, the rivet core comprises a rivet head, a locking part and a rivet pulling part, a fracture groove with a slightly smaller diameter is arranged at the joint of the locking part and the rivet pulling part, and a punched hole is arranged at one end of a flange far away from the rivet head and is used for supporting a rivet pulling tool. The rod portion of the rivet core is provided with threads connected with a rivet pulling tool, slope structures are arranged at the two ends of the rivet body in a clamping and printing mode, on one hand, bulging and folding are more sufficient and even through the double-slope structures, so that the whole face of a bulge is attached to a riveting plate, a flange face and the bulge are extruded on the riveting plate in a concentrated mode, and the effect of clamping a workpiece is achieved; and on the other hand, the thread rolling procedure of the rivet body is reduced through the clamping printing mode, cost is reduced, the production progress is accelerated, meanwhile, the problem that a machine is stuck due to the fact that the rivet core is difficult to penetrate into the rivet body is solved, and the assembling progress and the product quality stability are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a single-drum type blind rivet specially used for a pedal longitudinal beam of a new energy vehicle. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as their power source (or use conventional automotive fuels and new onboard power devices), and integrate advanced technologies in vehicle power control and drive to form vehicles with advanced technical principles, new technologies, and new structures. Car pedals are a type of automotive component used to decorate the door sill of a car, protecting and beautifying the car body. As the number of new energy vehicles gradually increases, the use of car pedals is also increasing.

[0003] Existing foot pedals of new energy vehicles are generally fixed to the vehicle chassis by conventional rivets during installation. However, the rivet body structure of conventional rivets is formed by thread rolling. The size of the threading groove is unstable during the production process. When the nail core and the rivet body are assembled, the nail core is subjected to excessive force when penetrating into the rivet body, which expands the original threading groove, causing the nail head to fall off or the rivet body to be insufficiently bulged. It may even cause the machine to get stuck during assembly, affecting the assembly progress and product quality. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to overcome the defects of the above-mentioned prior art and provide a single-drum type blind rivet specially used for the pedal longitudinal beam of new energy vehicles, which has uniform bulging, good clamping effect and stable and guaranteed product quality.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a single-drum type blind rivet specially used for the pedal longitudinal beam of new energy vehicles, including a rivet body and a rivet core, the rivet core includes a rivet head, a locking part and a rivet pulling part, a fracture groove with a slightly smaller diameter is arranged at the connection between the locking part and the rivet pulling part, and the rivet body is respectively provided with slopes at both ends close to the rivet head and the flange, so that a bulge is formed between the two slopes.

[0006] Furthermore, the nail core is provided with a plurality of annular ribs near the nail head, which are spaced apart from each other and are serrated, and the annular ribs are locked with the bulge after riveting.

[0007] Furthermore, the annular rib is inclined at an acute angle of 40° to 60° relative to the central axis of the nail core.

[0008] Furthermore, the slope is formed by clamping printing.

[0009] Furthermore, the flange is provided with an upper punch hole at one end away from the nail head to remove burrs generated during the riveting process and prevent the burrs from overflowing.

[0010] Furthermore, the stem of the nail core is provided with an annular pattern matching the riveting tool.

[0011] The utility model of the single-drum blind rivet specially used for the pedal longitudinal beam of the new energy vehicle has the following beneficial effects:

[0012] 1. The rivet body is provided with a double slope structure, which makes the bulging and folding more sufficient and uniform, so that the entire surface of the bulge fits the riveted plate. With the effect of the nail breaking force, the flange surface and the bulge are concentratedly squeezed on the riveted plate to achieve the effect of clamping the workpiece;

[0013] 2. The double slope structure is set by clamping printing, which reduces the thread rolling process of the rivet body, reduces costs, improves production progress, and solves the problem of the nail core being difficult to penetrate into the rivet body, causing the machine to jam. The assembly progress and product quality are stable and guaranteed;

[0014] 3. A plurality of serrated annular ribs are arranged on the nail core, and the annular ribs are locked with the bulge after riveting, thereby avoiding the risk of the nail head loosening or falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 yes Figure 1 A schematic diagram of the front structure of

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the state after the blind rivet of the utility model is riveted to the riveting plate;

[0020] In the figure: 1. rivet body, 2. nail core, 21. nail head, 22. locking part, 23. fracture groove, 24. pull rivet part, 3. slope, 4. flange, 5. annular pattern, 6. inner groove, 7. annular rib, 8. riveting plate, 9. bulge. DETAILED DESCRIPTION

[0021] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0022] As shown in the figure, the single-drum blind rivet specially used for the pedal longitudinal beam of new energy vehicles includes a rivet body 1 and a nail core 2. The nail core 2 includes a nail head 21, a locking part 22 and a rivet pulling part 24. A fracture groove 23 with a slightly smaller diameter is arranged at the connection between the locking part 22 and the rivet pulling part 24. The flange 4 has an upper punching hole 6 at the end away from the nail head 21 to remove burrs generated during the riveting process and prevent the burrs from overflowing. The rod of the nail core 2 is provided with a ring pattern 5 matching the rivet pulling tool.

[0023] The rivet body 1 is provided with a slope 3 structure at both ends close to the nail head 21 and the flange 4, so that a bulge is formed between the two slopes 3, in order to make the bulging and folding more sufficient and uniform, so that the entire surface of the bulge 9 fits the riveted plate 8, and under the effect of the nail breaking force, the flange surface and the bulge 9 are concentratedly squeezed on the riveted plate 8, so as to achieve the effect of clamping the workpiece.

[0024] The slope 3 is formed by clamping printing, which reduces the thread rolling process of the rivet body, reduces costs, improves production progress, and solves the problem of machine jamming caused by the difficulty of the nail core to penetrate the rivet body. The assembly progress and product quality are stable and guaranteed.

[0025] The nail core 2 is provided with a plurality of annular ribs 7 near the nail head 21, which are spaced apart from each other and are serrated. The annular ribs 7 are inclined at an acute angle of 40° to 60° relative to the central axis of the nail core 2. After riveting, the annular ribs 7 are locked with the riveted bulge 9, avoiding the risk of the nail head loosening or falling off.

[0026] During specific implementation, the product technical parameters must meet the following requirements:

[0027] 1. Appearance:

[0028] The surface is free of burrs and harmful defects, and has a complete head and rod shape. When visually inspected at 5 times magnification after riveting, the rivet should not have visible cracking marks. (Refer to GB / T5779.1-2000 related standards)

[0029] 2. Mechanical properties:

[0030] Tensile strength: 6800N (Min.)

[0031] Shear resistance: 10000N (Min.)

[0032] 3. Material:

[0033] Rivet body: 304 stainless steel

[0034] Nail core: 304 stainless steel

[0035] 4. Surface treatment:

[0036] Natural color passivation, neutral salt spray 480H without red rust.

[0037] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A single-drum blind rivet specially used for the pedal longitudinal beam of a new energy vehicle, characterized by: The rivet comprises a rivet body (1) and a nail core (2), wherein the nail core (2) comprises a nail head (21), a locking portion (22) and a rivet pulling portion (24), a fracture groove (23) with a slightly smaller diameter is arranged at the connection between the locking portion (22) and the rivet pulling portion (24), and the rivet body (1) is respectively provided with a slope (3) structure at both ends close to the nail head (21) and the flange (4), so that a bulge is formed between the two slopes (3); The nail core (2) is provided with a plurality of annular ribs (7) near the nail head (21), which are spaced apart from each other and are in a sawtooth shape, and the annular ribs (7) are locked with the bulge (9) after riveting; The flange (4) is provided with an upper punch hole (6) at one end away from the nail head (21) to remove burrs generated during the riveting process and prevent the burrs from overflowing.

2. According to claim 1, a single-drum blind rivet specially used for the pedal longitudinal beam of a new energy vehicle is characterized in that: The annular rib (7) is inclined at an acute angle of 40° to 60° relative to the central axis of the nail core (2).

3. According to claim 1, a single-drum blind rivet specially used for the pedal longitudinal beam of a new energy vehicle is characterized in that: The slope (3) is formed by a clamping printing method.

4. According to claim 1, a single-drum blind rivet specially used for the pedal longitudinal beam of a new energy vehicle is characterized in that: The stem of the nail core (2) is provided with an annular pattern (5) matching the riveting tool.

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