Direct stamping square nut

Abstract

The utility model discloses a directly stamped square nut, which relates to the technical field of square nuts, and comprises a riveting part, a head part and a material containing groove, the cross section of the riveting part and the cross section of the head part are rectangular blocks, the top end of the riveting part is a plane, the bottom surface of the head part is a plane, and the material containing groove is arranged in the riveting part. The cross sectional area of the riveting part is smaller than that of the head part, and clamping parts for fixing automobile connecting plates are arranged on the two sides of the nut. The material containing groove is formed in the edge face of the nut, the upper face and the lower face of the material containing groove are parallel, and the material containing groove is provided with a part of straight sections, so that materials filled in a plate after press riveting have better supporting performance, connection is more stable, rigidity is higher, meanwhile, the trapezoid slope can release stress of the connecting materials, stress concentration is reduced, the failure risk is reduced, and the service life of the nut is prolonged. Meanwhile, the riveting part and the head part of the nut are planes, and when the nut is installed, the nut is flush with the installation face.

Description

Technical Field

[0001] The utility model relates to the technical field of square nuts, and particularly relates to a directly stamped square nut. Background Art

[0002] A square nut, also known as a square mother, is a hardware device and a fastening fitting with a square shape and can be used in conjunction with a bolt. A nut, also called a screw nut, is a fixing tool with a hole in the center and internal threads on the inner side of the hole. Nuts are often used in combination with screws of appropriate sizes to fix relevant joint parts. Nuts are mostly hexagonal, followed by square, and large square nuts are widely used in automotive connecting plates.

[0003] Currently, the edge surfaces of square nuts on the market are mostly flat, resulting in poor support for the materials filled in the plate after press riveting, which in turn leads to unstable connection. At the same time, the upper and lower surfaces of the nut are not flat enough, causing the nut to protrude during installation. Content of the Utility Model

[0004] The purpose of the utility model is to provide a directly stamped square nut to solve the problem that the edges of square nuts on the current market are mostly flat, resulting in poor support for the materials filled in the plate after press riveting, which in turn leads to unstable connection as mentioned in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A directly stamped square nut includes a riveting part, a head, and a material receiving groove. The cross-sectional shapes of both the riveting part and the head are rectangular blocks. The top end of the riveting part is a plane, and the bottom surface of the head is a plane. The cross-sectional area of the riveting part is smaller than that of the head. The two sides of the nut are provided with clamping parts for fixing automotive connecting plates. The clamping part includes a material receiving groove, which is trapezoidal in shape, and the trapezoidal interior has an inclined slope for releasing the stress on the contact surface of the plate. The upper and lower surfaces of the material receiving groove are parallel, and there are straight sections on the upper and lower surfaces to limit the up and down sliding of the automotive connecting plate.

[0006] Preferably, the top surface of the riveting part is parallel to the bottom end of the head.

[0007] Preferably, the material receiving groove is located between the riveting part and the head, and the material receiving groove is in a concave state.

[0008] Preferably, the internal thread of the nut is a cylindrical thread.

[0009] Preferably, the internal thread of the nut is a conical thread.

[0010] Preferably, the nut is made of carbon steel.

[0011] Technical effects and advantages of the present utility model: By providing a material receiving groove on the edge surface of the nut, with the upper and lower surfaces of the material receiving groove being parallel and having partial straight sections, the material filled in the plate after press riveting has better support, thus making the connection more stable and rigid. At the same time, the trapezoidal slope can release the stress of the connecting material, reduce stress concentration, and lower the risk of failure. Meanwhile, both the riveting part and the head of the nut are flat surfaces, making the nut flush with the installation surface when the nut is installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0013] Figure 2 is a front view sectional structural schematic diagram of the nut of the present utility model.

[0014] Figure 3 is a top view structural schematic diagram of the nut of the present utility model.

[0015] In the figure: 1, riveting part; 2, head; 3, material receiving groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] The present utility model provides a Figures 1-3 shown direct stamping square nut, including a riveting part 1, a head 2, and a material receiving groove 3. The cross-sectional shapes of both the riveting part 1 and the head 2 are rectangular blocks. The top end of the riveting part 1 is a flat surface, and the bottom surface of the head 2 is a flat surface. The cross-sectional area of the riveting part 1 is smaller than that of the head 2. The two sides of the nut are provided with clamping parts for fixing the automotive connection plate. The clamping part includes a material receiving groove 3. The material receiving groove 3 is trapezoidal, and the trapezoidal shape has an inclined slope for releasing the stress on the contact surface of the plate. The upper and lower surfaces of the material receiving groove 3 are parallel, and the upper and lower surfaces have partial straight sections for restricting the up and down sliding of the automotive connection plate, so that the material filled in the plate after press riveting has better support, thus making the connection more stable and rigid. At the same time, the trapezoidal slope can release the stress of the connecting material, reduce stress concentration, and lower the risk of failure.

[0018] As Figure 1As shown, the top surface of the riveting part 1 is parallel to the bottom end of the head 2. By making the bottom surface of the riveting part 1 parallel to the top end of the head 2, a flat surface can be formed with the connecting plate after the nut is connected, which is practical and can adapt to different plate thicknesses through die adjustment, breaking the limitations of use. The internal thread of the nut can be cylindrical thread or conical thread, and the height of the riveting part 1 is designed differently according to the thickness of the press-riveted plate.

[0019] As Figure 2 shown, the material storage groove 3 is located between the riveting part 1 and the head 2, and the material storage groove 3 is in a concave state, which is convenient for supporting the materials filled in the plate through the material storage groove 3.

[0020] As Figure 3 shown, the nut is made of carbon steel. At the same time, the process route in manufacturing the nut adopts profile cutting, which has high production efficiency, short cycle, low cost, and less loss. In production, the punching generates material loss, which greatly reduces the production cost.

[0021] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A directly stamped square nut, comprising a riveting part (1), a head (2), and a material containing groove (3), characterized in that: The cross-sectional shapes of the riveting part (1) and the head (2) are both rectangular blocks. The top end of the riveting part (1) is a plane, and the bottom surface of the head (2) is a plane. The cross-sectional area of the riveting part (1) is smaller than that of the head (2). The two sides of the nut are provided with clamping parts for fixing the automotive connection plates. The clamping part includes a material-containing groove (3). The material-containing groove (3) is trapezoidal, and there is an inclined slope inside the trapezoid for releasing the stress on the contact surface of the plate. The upper and lower surfaces of the material-containing groove (3) are parallel, and there are partial straight sections on the upper and lower surfaces for restricting the up and down sliding of the automotive connection plates.

2. The square nut for direct stamping according to claim 1, characterized in that: The top surface of the riveting part (1) is parallel to the bottom end of the head (2).

3. A direct-stamped square nut according to claim 1, characterized in that: The material-containing groove (3) is located between the riveting part (1) and the head (2), and the material-containing groove (3) is in a concave state.

4. A direct stamping square nut according to claim 1, characterized in that: The internal thread of the nut is a cylindrical thread.

5. A direct stamping square nut according to claim 1, characterized in that: The internal thread of the nut is a conical thread.

6. A direct-stamped square nut according to claim 1, characterized in that: The nut is made of carbon steel.

Images